The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Positron annihilation in amine‐cured epoxy polymers—pressure dependence
Abstract
Positron annihilation spectroscopy has been used to study free volume in an arnine‐cured epoxy as a function of external pressure at temperatures above and below the glass transition temperature. The observed ortho‐positronium lifetime τ 3 and formation probability I3 decreased with increasing pressure. The decrease in τ 3 is interpreted in terms of a corresponding decrease in average free‐volume hole size over the range from 0.135 to 0.045 nm 3. The fractional free‐volume and the free‐volume compressibility in the epoxy are calculated as functions of pressure at 100°C.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Viscoelastic Properties of Polymers
Jones, W. M. (1981) · Journal of Non-Newtonian Fluid Mechanics · doi:10.1016/0377-0257(81)80036-5 · Cited by 11,092
Molecular Transport in Liquids and Glasses
Cohen, M. H., & Turnbull, D. (1959) · The Journal of Chemical Physics · doi:10.1063/1.1730566 · Cited by 3,959
Positron Annihilation Spectroscopy
Siegel, R. W. (1980) · Annual Review of Materials Science · doi:10.1146/annurev.ms.10.080180.002141 · Cited by 347
Dependence of Positron Lifetimes on the Temperature and Phase of Some Organic Media
Thosar, B. V., Laciu, R. G., Kulkarni, V. G., & Chandra, G. (1973) · physica status solidi (b) · doi:10.1002/pssb.2220550143 · Cited by 33
Cited by
Hutchinson, J. M. (1995) · Progress in Polymer Science · doi:10.1016/0079-6700(94)00001-i · Cited by 1,045
Paszkiewicz, S., Walkowiak, K., Irska, I., Rozwadowski, Z., & Dryzek, J. (2024) · Journal of Applied Polymer Science · doi:10.1002/app.55089 · Cited by 3
Metadata
- Authors
- Wang, Y. Y., Nakanishi, H., Jean, Y. C., & Sandreczki, T. C.
- Venue
- Journal of Polymer Science Part B: Polymer Physics
- Publisher
- Wiley
- Published
- 1990-08
- Volume
- 28
- Issue
- 9
- Pages
- 1431-1441
- ISSN
- 0887-6266 (ISSN-L)
- 1099-0488
- OpenAlex
- W2071462598
- Cited by
- 323
- References
- 4
- FWCI
- 5.25
- Type
- journal article
- Language
- en
- Open access
- closed
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
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Positron annihilation in amine‐cured epoxy polymers—pressure dependence. https://app.cochat.ai/papers/10.1002/polb.1990.090280902
- The paper
- Wang, Y. Y., Nakanishi, H., Jean, Y. C., & Sandreczki, T. C. (1990). Positron annihilation in amine‐cured epoxy polymers—pressure dependence. Journal of Polymer Science Part B: Polymer Physics. https://doi.org/10.1002/polb.1990.090280902
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
