The DOI matches its Crossref record.
Random Reorganization of Molecular Weight Distribution in Linear Condensation Polymers1
Abstract
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRandom Reorganization of Molecular Weight Distribution in Linear Condensation Polymers1Paul J. FloryCite this: J. Am. Chem. Soc. 1942, 64, 9, 2205–2212Publication Date (Print):September 1, 1942Publication History Published online1 May 2002Published inissue 1 September 1942https://pubs.acs.org/doi/10.1021/ja01261a049https://doi.org/10.1021/ja01261a049research-articleACS PublicationsRequest reuse permissionsArticle Views446Altmetric-Citations121LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Overview
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
In the citing paper
“LIPIT has been utilized previously to study the impact responses of gels, metals, ceramics, and a range of other materials 29,37-40 .”
From Cleavable comonomers enable degradable, recyclable thermoset plastics (2020) · cites this paper as [37]
Citations
Cited by
Sorted by citations
Theory of Molecular Size Distribution and Gel Formation in Branched-Chain Polymers
STOCKMAYER, W. H. (1943) · The Journal of Chemical Physics · doi:10.1063/1.1723803 · Cited by 1,919
Review: the structure of simple phosphate glasses
Brow, R. K. (2000) · Journal of Non-Crystalline Solids · doi:10.1016/s0022-3093(99)00620-1 · Cited by 1,606
Flory, P. J. (1949) · The Journal of Chemical Physics · doi:10.1063/1.1747230 · Cited by 789
Self-citationStatic and dynamic light scattering from branched polymers and biopolymers
Burchard, W. (2007) · Springer eBooks · doi:10.1007/3-540-12030-0_1 · Cited by 710
Paul, D. R., & Barlow, J. W. (1980) · Journal of macromolecular science. Part C, Reviews in macromolecular chemistry and physics/Journal of macromolecular science. Reviews in macromolecular chemistry and physics · doi:10.1080/00222358008080917 · Cited by 689
Cleavable comonomers enable degradable, recyclable thermoset plastics
Shieh, P., Zhang, W., Husted, K. E. L., Kristufek, S. L., Xiong, B., Lundberg, D. J., Lem, J., Veysset, D., Sun, Y., Nelson, K. A., et al. (2020) · Nature · doi:10.1038/s41586-020-2495-2 · Cited by 498
Thermodynamics of Heterogeneous Polymers and Their Solutions
Flory, P. J. (1944) · The Journal of Chemical Physics · doi:10.1063/1.1723887 · Cited by 378
Self-citationInterchange reactions involving condensation polymers
Kotliar, A. M. (1981) · Journal of Polymer Science Macromolecular Reviews · doi:10.1002/pol.1981.230160106 · Cited by 237
Polymer blends and alloys—a review of selected considerations
Barlow, J. W., & Paul, D. R. (1981) · Polymer Engineering and Science · doi:10.1002/pen.760211502 · Cited by 216
Occurrence of head‐to‐head arrangements of structural units in polyvinyl alcohol
Flory, P. J., & Leutner, F. S. (1948) · Journal of Polymer Science · doi:10.1002/pol.1948.120030608 · Cited by 175
Self-citationCompatible blends of biorelated polyesters through catalytic transesterification in the melt
Coltelli, M., Toncelli, C., Ciardelli, F., & Bronco, S. (2011) · Polymer Degradation and Stability · doi:10.1016/j.polymdegradstab.2011.01.028 · Cited by 99
Development of a quantitative theory of polycondensation
Kuchanov, S. I. (2004) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2004.02.001 · Cited by 95
Reactions in polymer blends: interchain effects and theoretical problems
Litmanovich, A. D., Platé, N. A., & Kudryavtsev, Y. V. (2002) · Progress in Polymer Science · doi:10.1016/s0079-6700(02)00003-5 · Cited by 82
Redistribution Equilibria of Organometallic Compounds
Moedritzer, K. (1968) · Advances in organometallic chemistry · doi:10.1016/s0065-3055(08)60589-4 · Cited by 72
Multi‐center nature of heterogeneous Ziegler–Natta catalysts: TREF confirmation
Kissin, Y. V., Mirabella, F. M., & Meverden, C. C. (2005) · Journal of Polymer Science Part A Polymer Chemistry · doi:10.1002/pola.20875 · Cited by 69
Matula, D. W., Groenweghe, L. C. D., & Wazer, J. R. V. (1964) · The Journal of Chemical Physics · doi:10.1063/1.1725683 · Cited by 65
Constitution of Sodium, Potassium, and Lithium Phosphate Glasses
Westman, A. E. R., & GARTAGANlS, P. A. (1957) · Journal of the American Ceramic Society · doi:10.1111/j.1151-2916.1957.tb12625.x · Cited by 63
Copolyesters of glycols and bisphenols: A new preparative process
Hamb, F. L. (1972) · Journal of Polymer Science Part A-1 Polymer Chemistry · doi:10.1002/pol.1972.170101109 · Cited by 61
Hermans, P. H., Heikens, D., & van Velden, P. F. (1955) · Journal of Polymer Science · doi:10.1002/pol.1955.120168230 · Cited by 55
Kissin, Y. V., Qian, C., Xie, G., et al. (2006) · Journal of Polymer Science Part A Polymer Chemistry · doi:10.1002/pola.21689 · Cited by 53
Nanomechanical properties of poly(lactic-co-glycolic) acid film during degradation
Shirazi, R. N., Aldabbagh, F., Erxleben, A., Rochev, Y. A., & McHugh, P. E. (2014) · Acta Biomaterialia · doi:10.1016/j.actbio.2014.08.004 · Cited by 52
de Klerk, A., Leckel, D., & Prinsloo, N. M. (2006) · Industrial & Engineering Chemistry Research · doi:10.1021/ie060207m · Cited by 46
Chromatographic studies of the structures of amorphous phosphates: a review
Sales, B. C., Boatner, L. A., & Ramey, J. O. (2000) · Journal of Non-Crystalline Solids · doi:10.1016/s0022-3093(99)00644-4 · Cited by 46
Challa, G. (1960) · Die Makromolekulare Chemie · doi:10.1002/macp.1960.020380112 · Cited by 46
Dynamic polythioesters via ring-opening polymerization of 1,4-thiazine-2,5-diones
Ura, Y., Al-Sayah, M. H., Montenegro, J., Beierle, J. M., Leman, L. J., & Ghadiri, M. R. (2009) · Organic & Biomolecular Chemistry · doi:10.1039/b903612a · Cited by 43
Amide-modified poly(butylene terepthalate): thermal stability
van Bennekom, A. C. M., Willemsen, P. A. A. T., & Gaymans, R. J. (1996) · Polymer · doi:10.1016/s0032-3861(96)00355-2 · Cited by 42
Fakirov, S., Sarkissova, M., & Denchev, Z. Z. (1996) · Macromolecular Chemistry and Physics · doi:10.1002/macp.1996.021970921 · Cited by 40
Polyethylene terephthalate—II. Engineering analysis
Ravindranath, K., & Mashelkar, R. A. (1986) · Chemical Engineering Science · doi:10.1016/0009-2509(86)85034-5 · Cited by 39
Burchard, W. (2004) · Macromolecules · doi:10.1021/ma049950l · Cited by 39
McAlea, K. P., Schultz, J. M., Gardner, K. H., et al. (1986) · Polymer · doi:10.1016/0032-3861(86)90108-4 · Cited by 38
Über den thermischen abbau des poly(ε‐caprolacton)s
Lüderwald, I. (1977) · Die Makromolekulare Chemie · doi:10.1002/macp.1977.021780911 · Cited by 35
Über den Mechanismus und die Kinetik der ε‐Caprolactam‐Polymerisatien in Gegenwart von Wasser).
Wiloth, V. F. (1954) · Die Makromolekulare Chemie · doi:10.1002/macp.1954.020140112 · Cited by 35
Structural differences between the glass state and ion-beam-amorphized states of lead pyrophosphate
Sales, B. C., Ramey, J. O., McCallum, J. C., et al. (1990) · Journal of Non-Crystalline Solids · doi:10.1016/0022-3093(90)90818-7 · Cited by 33
Effect of Ionizing Radiation on a Series of Saturated Polyesters
D'ALELIO, G. F., Häberli, R., & Pezdirtz, G. F. (1968) · Journal of Macromolecular Science Part A - Chemistry · doi:10.1080/10601326808051427 · Cited by 31
The Kinetics of Ester-Ester Exchange Reactions by Mass Spectrometry
Ramjit, H. G., & Sedgwick, R. D. (1976) · Journal of Macromolecular Science Part A - Chemistry · doi:10.1080/00222337608061220 · Cited by 31
Sosnowski, S., & Lewiński, P. (2015) · Polymer Chemistry · doi:10.1039/c5py00748h · Cited by 29
Thermal stability of Na2O–FeO–Fe2O3–P2O5 glasses
Ma, L., Brow, R. K., Ghussn, L., et al. (2014) · Journal of Non-Crystalline Solids · doi:10.1016/j.jnoncrysol.2014.11.019 · Cited by 29
Deposition and Characterization of Li 2 O–SiO 2 –P 2 O 5 Thin Films
Bates, J. B., Dudney, N. J., Luck, C. F., et al. (1993) · Journal of the American Ceramic Society · doi:10.1111/j.1151-2916.1993.tb05317.x · Cited by 28
Kotliar, A. M. (1973) · Journal of Polymer Science Polymer Chemistry Edition · doi:10.1002/pol.1973.170110604 · Cited by 28
Equilibrium Distribution in Sizes for Linear Polymer Molecules
Tobolsky, A. V. (1944) · The Journal of Chemical Physics · doi:10.1063/1.1723881 · Cited by 27
Three-Component Dynamic Covalent Chemistry: From Janus Small Molecules to Functional Polymers
Liu, H., Lu, H., Zhuang, J., et al. (2021) · Journal of the American Chemical Society · doi:10.1021/jacs.1c08574 · Cited by 26
Statistical Mechanics of Linear Association Equilibria
Flory, P. J. (1946) · The Journal of Chemical Physics · doi:10.1063/1.1724064 · Cited by 25
Self-citationKritische betrachtungen zur bestimmung der uneinheitlichkeit von polyamiden
Griehl, W., & Lückert, H. (1958) · Journal of Polymer Science · doi:10.1002/pol.1958.1203012133 · Cited by 25
Flexible preparation of polyamide-6 based thermoplastic elastomers via amide exchange
Chen, J., Gong, C., Yang, C., et al. (2021) · Journal of Materials Science · doi:10.1007/s10853-021-06057-z · Cited by 22
Sales, B. C., Boatner, L. A., & Ramey, J. O. (1998) · Journal of Non-Crystalline Solids · doi:10.1016/s0022-3093(98)00379-2 · Cited by 22
Yang, H., He, J., & Liang, B. (2001) · Journal of Polymer Science Part B Polymer Physics · doi:10.1002/polb.10021 · Cited by 22
Calculated molecular weight distribution for glutenin
Ewart, J. A. D. (1987) · Journal of the Science of Food and Agriculture · doi:10.1002/jsfa.2740380312 · Cited by 22
Structural study of Na2O–FeO–Fe2O3–P2O5 glasses by high-pressure liquid chromatography
Ma, L., & Brow, R. K. (2014) · Journal of Non-Crystalline Solids · doi:10.1016/j.jnoncrysol.2013.12.011 · Cited by 21
A new solvent system for gel‐permeation chromatography of poly(ethylene terephthalate)
Paschke, E., Bidlingmeyer, B. A., & Bergmann, J. G. (1977) · Journal of Polymer Science Polymer Chemistry Edition · doi:10.1002/pol.1977.170150419 · Cited by 21
Purwanto, N. S., Wang, T., Liu, X., et al. (2025) · Advanced Functional Materials · doi:10.1002/adfm.202507313 · Cited by 20
Polyolefin microstructural deconvolution methods: The good, the bad, and the ugly
Soares, J. B. P. (2023) · The Canadian Journal of Chemical Engineering · doi:10.1002/cjce.24833 · Cited by 19
The Dynamics of Nanowire Self‐Assembly
Chen, M., & Searson, P. C. (2005) · Advanced Materials · doi:10.1002/adma.200501292 · Cited by 19
The Synthesis of Polymers by Modification Methods
Korshak, V. V. (1980) · Russian Chemical Reviews · doi:10.1070/rc1980v049n12abeh002533 · Cited by 19
�ber den Mechanismus und die Kinetik der ?-Caprolactam-Polymerisation in Gegenwart von Wasser
Wiloth, F. (1955) · Colloid & Polymer Science · doi:10.1007/bf01524486 · Cited by 19
Modeling of polyethylene terephthalate reactors: 7. MWD considerations
Ravindkanath, K., & Mashelkar, R. A. (1984) · Polymer Engineering and Science · doi:10.1002/pen.760240104 · Cited by 19
Interchange Reactions in Condensation Polymers and Their Analysis by NMR Spectroscopy
Kricheldorf, H. R., & Denchev, Z. Z. (1999) · doi:10.1002/9783527613847.ch1 · Cited by 19
Über die Eigenschaften von Mischpolyamiden in Lösung und im festen Zustand
Batzer, V. H., & Möschle, A. (1957) · Die Makromolekulare Chemie · doi:10.1002/macp.1957.020220113 · Cited by 18
Isomorphism in aliphatic copolyesters
Howard, G. J., & Knutton, S. (1968) · Polymer · doi:10.1016/0032-3861(68)90064-5 · Cited by 16
The effect of annealing on the crystallization of poly(ethylene terephthalate)/polycarbonate blends
Kong, Y., & Hay, J. N. (2004) · Journal of Polymer Science Part B Polymer Physics · doi:10.1002/polb.20097 · Cited by 16
Voron’ko, Y. K., Sobol’, A. A., & Евгеньевич, Ш. В. (2012) · Inorganic Materials · doi:10.1134/s0020168512060210 · Cited by 15
Thermodynamics of Polymerization. IV. Thermodynamics of Equilibrium Polymerization
Sawada, H. (1972) · Journal of macromolecular science. Part C, Reviews in macromolecular chemistry and physics/Journal of macromolecular science. Reviews in macromolecular chemistry and physics · doi:10.1080/15321797208068172 · Cited by 15
Dendrimer Chemistry: Supramolecular Perspectives and Applications
Moorefield, C. N., Perera, S., & Newkome, G. R. (2012) · doi:10.1002/9781118275238.ch1 · Cited by 15
Zur Thermodynamik von Additionspolymerisationsprozessen
Ivin, K. J. (1973) · Angewandte Chemie · doi:10.1002/ange.19730851203 · Cited by 15
Application of nanotechnology for the development of microbicides
Brako, F., Mahalingam, S., Raimi‐Abraham, B. T., Craig, D. Q. M., & Edirisinghe, M. J. (2016) · Nanotechnology · doi:10.1088/1361-6528/28/5/052001 · Cited by 15
Kuchanov, S. I., & Pismen, L. M. (1972) · Polymer Science U.S.S.R. · doi:10.1016/0032-3950(72)90376-0 · Cited by 14
Aliphatic Polyester Formation, Mechanisms of
Duda, A., & Penczek, S. (2002) · Wiley eBooks · doi:10.1002/3527600035.bpol3b12 · Cited by 14
Thermodynamics of Addition Polymerization Processes
Ivin, K. J. (1973) · Angewandte Chemie International Edition in English · doi:10.1002/anie.197304871 · Cited by 13
Barrett, L. W., Ferguson, G. S., & Sperling, L. H. (1993) · Journal of Polymer Science Part A Polymer Chemistry · doi:10.1002/pola.1993.080310524 · Cited by 13
Yao, Z., Sun, J., Wang, Q., et al. (2012) · Journal of Applied Polymer Science · doi:10.1002/app.36310 · Cited by 12
Transparency enhancement in semicrystalline PEEK through variation of polymer morphology
Jar, P. ‐. B., & Shanks, R. A. (1996) · Journal of Polymer Science Part B Polymer Physics · doi:10.1002/(sici)1099-0488(199603)34:4 · Cited by 6
The Reaction of Propane Sultone with Macromolecules. I. Cellulose and Starch
Natus, G., & Goethals, E. J. (1968) · Journal of Macromolecular Science Part A - Chemistry · doi:10.1080/10601326808051426 · Cited by 12
Sequential Reordering in Condensation Copolymers
Fakirov, S., & Denchev, Z. Z. (1999) · doi:10.1002/9783527613847.ch8 · Cited by 12
The effect of direct interchange reactions on the MWD of condensation polymers
Lertola, J. G. (1990) · Journal of Polymer Science Part A Polymer Chemistry · doi:10.1002/pola.1990.080281017 · Cited by 11
Wang, M., Yuan, G., & Han, C. C.-C. (2015) · Chinese Journal of Polymer Science · doi:10.1007/s10118-014-1475-0 · Cited by 10
Gaymans, R. J., & Sikkema, D. J. (1989) · Comprehensive Polymer Science and Supplements · doi:10.1016/b978-0-08-096701-1.00162-2 · Cited by 10
Polymerization of six-membered propylene oxalate
Iakimov, N. P., Budynina, E. M., Berkovich, A. K., et al. (2024) · European Polymer Journal · doi:10.1016/j.eurpolymj.2024.113410 · Cited by 9
Phelan, M., Aldabbagh, F., Zetterlund, P. B., & Yamada, B. (2005) · Macromolecular Theory and Simulations · doi:10.1002/mats.200400070 · Cited by 9
Solomon, D. H., & Hopwood, J. J. (1966) · Journal of Applied Polymer Science · doi:10.1002/app.1966.070100704 · Cited by 9
Ueberreiter, V. K., & Steiner, N. (1964) · Die Makromolekulare Chemie · doi:10.1002/macp.1964.020740113 · Cited by 9
Molecular weight of polymers from electrical resistivity of solutions
Purdon, J. R., & Morton, M. (1962) · Journal of Polymer Science · doi:10.1002/pol.1962.1205716536 · Cited by 9
Molecular Distributions at Equilibrium. V. Statistical-Mechanical Treatment of Ring—Chain Equilibria
Levy, R. M., & Wazer, J. R. V. (1966) · The Journal of Chemical Physics · doi:10.1063/1.1727839 · Cited by 9
A note on syndiotactic polyviny alcohol
Haas, H. C., & Makas, A. S. (1960) · Journal of Polymer Science · doi:10.1002/pol.1960.1204614821 · Cited by 8
Kinetic and thermodynamic factors in polymer chemistry
Hawthorne, D. G., & Solomon, D. H. (1976) · Journal of Polymer Science Polymer Symposia · doi:10.1002/polc.5070550122 · Cited by 8
Westman, A. E. R., & BEATTY, R. (1966) · Journal of the American Ceramic Society · doi:10.1111/j.1151-2916.1966.tb13209.x · Cited by 8
REDISTRIBUTION OF ORGANIC POLYMERS
Cooper, G. D. (1969) · Annals of the New York Academy of Sciences · doi:10.1111/j.1749-6632.1969.tb12962.x · Cited by 8
Zimmerman, J. (1989) · Comprehensive Polymer Science and Supplements · doi:10.1016/b978-0-08-096701-1.00211-1 · Cited by 8
Herold, J. D., & Meyerhoff, G. (1980) · Die Makromolekulare Chemie · doi:10.1002/macp.1980.021811218 · Cited by 8
Some physicochemical aspects regarding the synthesis of polyvinyl alcohol
Dimonie, M., Cincu, C., Oprescu, C. G., et al. (1978) · Journal of Polymer Science Polymer Symposia · doi:10.1002/polc.5070640118 · Cited by 7
Monte‐Carlo simulation of copolymer mass spectra
Montaudo, M. S. (1993) · Macromolecular Theory and Simulations · doi:10.1002/mats.1993.040020510 · Cited by 7
Burchard, W., Lang, P. R., & Bauer, J. (1992) · Makromolekulare Chemie Macromolecular Symposia · doi:10.1002/masy.19920610104 · Cited by 7
Gaonkar, A. A., Murudkar, V. V., & Deshpande, V. D. (2023) · Journal of Macromolecular Science Part B · doi:10.1080/00222348.2023.2202927 · Cited by 6
Molecular weight distribution in disulfide polymers
Shlyakhter, R. A., Ehrenburg, E. G., Nassonowa, T. P., et al. (1967) · Journal of Applied Polymer Science · doi:10.1002/app.1967.070110406 · Cited by 6
Rheological properties of reactive polymer melts
Kembłowski, Z., & Torzecki, J. (1983) · Rheologica Acta · doi:10.1007/bf01679827 · Cited by 6
Ester interchange reactions in polyester: A Monte Carlo simulation approach
Jo, W. H., Kwon, I. H., Huh, J., et al. (1992) · European Polymer Journal · doi:10.1016/0014-3057(92)90284-9 · Cited by 6
Monte Carlo Technique to Simulate Amide Interchange Reactions, 3
Liu, Z. H., Wang, C. S., Wang, X. Q., et al. (2005) · Macromolecular Theory and Simulations · doi:10.1002/mats.200400026 · Cited by 5
Calculation of the kinetics of homopolycondensation of bifunctional compounds
Kuchanov, S. I., & Pismen, L. M. (1971) · Polymer Science U.S.S.R. · doi:10.1016/0032-3950(71)90047-5 · Cited by 5
Biophysikalische Konferenz im Max-Planck-Institut für Physik, Göttingen, Januar 1947
Wirtz, K. (1948) · Angewandte Chemie · doi:10.1002/ange.19480600110 · Cited by 5
Sudduth, R. D. (2003) · Polymer Engineering and Science · doi:10.1002/pen.10042 · Cited by 5
Molecular-weight distribution of linear polycondensation polymers. Flory theory
Mizerovskii, L. N., & Падохин, В. А. (2013) · Fibre Chemistry · doi:10.1007/s10692-013-9458-4 · Cited by 4
Effect of the Monomer Ratio on the Properties of Melt-Polymerized Polycarbonate
Lim, B. H., Yi, J. W., & Park, O. O. (2019) · Macromolecular Research · doi:10.1007/s13233-019-7169-2 · Cited by 4
Metadata
- Authors
- Flory, P. J.
- Corresponding author
- Flory, Paul J.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 1942-09
- Volume
- 64
- Issue
- 9
- Pages
- 2205-2212
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2317687944
- Cited by
- 135
- References
- 0
- Citations by year
- 2025: 6 · 2024: 2 · 2023: 3 · 2021: 2 · 2020: 2 · 2019: 1 · 2018: 2 · 2016: 1 · 2015: 2 · 2014: 3 · 2013: 1 · 2012: 3
- FWCI
- 9.21
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of the American Chemical Society (publishedVersion)
- Topics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer Synthesis and Characterization
- Physical Sciences › Chemistry › Organic Chemistry › Advanced Polymer Synthesis and Characterization
- Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Advanced Physical and Chemical Molecular Interactions
- Keywords
- molecular weight distribution, chain conformation
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review