The DOI matches its Crossref record.
Studies on glass transition temperature of chitosan with four techniques
Abstract
Studies on the glass transition temperature (Tg) of chitosan are difficult to pursue because of the difficulty in sample preparation and the hydroscopicity of samples. There are a few works concerning this principal relaxation of chitosan. Among them, several quite different values (150°C, 161°C, and 203°C) have been reported. In this paper, the Tg of chitosan (140 ∼ 150°C) was determined by means of four techniques, namely, dynamic mechanical thermal analysis (DMTA), differential scanning calorimetry (DSC), thermally simulated current spectroscopy (TSC), and dilatometry (DIL). DSC measurement has been assumed not to be sensitive enough to detect the relaxation temperature of polysaccharides. We propose a new method to improve the sensitivity of the DSC measurement. After a physical aging treatment of samples, the transition in DSC traces became much more distinct because of the enthalpy relaxation. This technique was also used to distinguish the Tg from other relaxations. The Tg of chitosan with different degree of deacetylation (D.D.) was examined by DSC. No influence of D.D. on Tg was found. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 93: 1553–1558, 2004
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
Cited by
Drug release study of the chitosan-based nanoparticles
Herdiana, Y., Wathoni, N., Shamsuddin, S., & Muchtaridi, M. (2022) · Heliyon · doi:10.1016/j.heliyon.2021.e08674 · Cited by 576
Effects of Hydrophilic Plasticizers on Mechanical, Thermal, and Surface Properties of Chitosan Films
Suyatma, N. E., Tighzert, L., Copinet, A., & Coma, V. (2005) · Journal of Agricultural and Food Chemistry · doi:10.1021/jf048790+ · Cited by 466
Chitosan composite films: thermal, structural, mechanical and antifungal properties.
Martínez-Camacho, A. P., Cortez-Rocha, M. O., Ezquerra-Brauer, J. M., Graciano-Verdugo, A. Z., Rodriguez-Félix, F., Castillo-Ortega, M. M., Yépiz-Gómez, M. S., & Plascencia-Jatomea, M. (2010) · Carbohydrate Polymers · doi:10.1016/j.carbpol.2010.04.069 · Cited by 465
Metadata
- Authors
- Dong, Y., Ruan, Y., Wang, H., Zhao, Y., & Bi, D.
- Venue
- Journal of Applied Polymer Science
- Publisher
- Wiley
- Published
- 2004-05-18
- Volume
- 93
- Issue
- 4
- Pages
- 1553-1558
- ISSN
- 0021-8995 (ISSN-L)
- 1097-4628
- OpenAlex
- W2050278098
- Cited by
- 299
- References
- 0
- FWCI
- 6.25
- 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: Studies on glass transition temperature of chitosan with four techniques. https://app.cochat.ai/papers/10.1002/app.20630
- The paper
- Dong, Y., Ruan, Y., Wang, H., Zhao, Y., & Bi, D. (2004). Studies on glass transition temperature of chitosan with four techniques. Journal of Applied Polymer Science. https://doi.org/10.1002/app.20630
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.
