The DOI matches its Crossref record.
pH/temperature‐responsive semi‐IPN hydrogels composed of alginate and poly(N‐isopropylacrylamide)
Abstract
Amino semitelechelic poly(N‐isopropylacrylamide) (PNIPAAm) was prepared by radical polymerization with aminoethanethiol hydrochloride as a chain‐transfer agent. Semi‐interpenetrating polymer network (semi‐IPN) hydrogels, composed of alginate and amine‐terminated PNIPAAm, were prepared by crosslinking with calcium chloride. From the swelling behaviors of semi‐IPNs at various pH's and Fourier transform infrared spectra at high temperatures, the formation of a polyelectrolyte complex was confirmed from the reaction between carboxyl groups in alginate and amino groups in modified PNIPAAm. Semi‐IPN hydrogels reached an equilibrium swelling state within 24 h. The water state in hydrogels, investigated by differential scanning calorimetry, showed that sample CAN55 [alginate/PNIPAAm (w/w) = 50/50] exhibited the lowest equilibrium water content and free water content among the hydrogels tested, which was attributed to its more compact structure compared to other samples and the high content of interchain bonding within the hydrogels. Alginate/PNIPAAm semi‐IPN hydrogels exhibited a reasonable sensitivity to the temperature, pH, and ionic strength of swelling medium. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 83: 1128–1139, 2002
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
Kocak, G., Tuncer, C., & Bütün, V. (2017) · Polymer Chemistry · doi:10.1039/c6py01872f · Cited by 1,189
Crosslinked ionic polysaccharides for stimuli-sensitive drug delivery
Alvarez-Lorenzo, C., Blanco-Fernandez, B., Puga, A. M., & Concheiro, A. (2013) · Advanced Drug Delivery Reviews · doi:10.1016/j.addr.2013.04.016 · Cited by 532
Prabaharan, M., & Mano, J. F. (2006) · Macromolecular Bioscience · doi:10.1002/mabi.200600164 · Cited by 347
Hussein, K. H., Park, K.-M., Yu, L., Kwak, H.-H., & Woo, H.-M. (2020) · Materials Science and Engineering: C · doi:10.1016/j.msec.2020.111160 · Cited by 75
Naeem, F., Khan, S., Jalil, A., Ranjha, N. M., Riaz, A., Haider, M. S., Sarwar, S., Saher, F., & Afzal, S. (2017) · BioImpacts · doi:10.15171/bi.2017.21 · Cited by 58
“s s s v d v v Mc v v xv − = − − + + (7) Cross-linked density Characterization of cross-linked hydrogels is done by crosslinking density.”
Metadata
- Authors
- Ju, H. K., Kim, S. Y., Kim, S. J., & Lee, Y. M.
- Venue
- Journal of Applied Polymer Science
- Publisher
- Wiley
- Published
- 2001-11-28
- Volume
- 83
- Issue
- 5
- Pages
- 1128-1139
- ISSN
- 0021-8995 (ISSN-L)
- 1097-4628
- OpenAlex
- W2015772433
- Cited by
- 197
- References
- 0
- FWCI
- 2.56
- 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: pH/temperature‐responsive semi‐IPN hydrogels composed of alginate and poly(N‐isopropylacrylamide). https://app.cochat.ai/papers/10.1002/app.10137
- The paper
- Ju, H. K., Kim, S. Y., Kim, S. J., & Lee, Y. M. (2002). pH/temperature‐responsive semi‐IPN hydrogels composed of alginate and poly(N‐isopropylacrylamide). Journal of Applied Polymer Science. https://doi.org/10.1002/app.10137
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.
