The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Highly pH-sensitive polyurethane exhibiting shape memory and drug release
Abstract
A hydrogen bonding interaction is formed and broken between N of the pyridine ring and H–N of urethane in the PEG4000–MDI–BIN polymer due to the deprotonation and protonation of pyridine rings by simply changing the pH value of the external environment, and can reversibly switch both the shape memory and drug release.
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
Designing materials for biology and medicine
Langer, R., & Tirrell, D. A. (2004) · Nature · doi:10.1038/nature02388 · Cited by 3,198
Biodegradable, Elastic Shape-Memory Polymers for Potential Biomedical Applications
Lendlein, A., & Langer, R. (2002) · Science · doi:10.1126/science.1066102 · Cited by 2,146
Light-induced shape-memory polymers
Lendlein, A., Jiang, H., Jünger, O., & Langer, R. (2005) · Nature · doi:10.1038/nature03496 · Cited by 2,006
Kumpfer, J. R., & Rowan, S. J. (2011) · Journal of the American Chemical Society · doi:10.1021/ja205332w · Cited by 487
Thermo-moisture responsive polyurethane shape-memory polymer and composites: a review
Huang, W. M., Yang, B., Zhao, Y., & Ding, Z. (2010) · Journal of Materials Chemistry · doi:10.1039/b922943d · Cited by 382
Bioinspired mechanically adaptive polymer nanocomposites with water-activated shape-memory effect
Mendez, J., Annamalai, P. K., Eichhorn, S. J., Rusli, R., Rowan, S. J., Foster, E. J., & Weder, C. (2011) · Macromolecules · doi:10.1021/ma201502k · Cited by 319
pH-induced shape-memory polymers
Han, X., Dong, Z., Fan, M., Liu, Y., li, J., Wang, Y., Yuan, Q., Li, B., & Zhang, S. (2012) · Macromolecular Rapid Communications · doi:10.1002/marc.201200153 · Cited by 304
Self-citationA biodegradable shape-memory nanocomposite with excellent magnetism sensitivity
Yu, X., Zhou, S., Zheng, X., Guo, T., Xiao, Y., & Song, B. (2009) · Nanotechnology · doi:10.1088/0957-4484/20/23/235702 · Cited by 111
Self-citation
Cited by
Soft Actuators for Small-Scale Robotics
Hines, L., Petersen, K., Lum, G. Z., & Sitti, M. (2017) · Advanced Materials · doi:10.1002/adma.201603483 · Cited by 1,337
Multiple and two-way reversible shape memory polymers: Design strategies and applications
Wang, K., Jia, Y.-G., Zhao, C., & Zhu, X. X. (2019) · Progress in Materials Science · doi:10.1016/j.pmatsci.2019.100572 · Cited by 208
Li, Y., Chen, H., Liu, D., Wang, W., Liu, Y., & Zhou, S. (2015) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.5b02940 · Cited by 206
Reversible Bidirectional Shape Memory Effect in Polyurethanes through Molecular Flipping
Biswas, A., Aswal, V. K., Sastry, P. U., Rana, D., & Maiti, P. (2016) · Macromolecules · doi:10.1021/acs.macromol.6b00536 · Cited by 78
Metadata
- Authors
- Chen, H., Li, Y., Liu, Y., Gong, T., Wang, L., & Zhou, S.
- Venue
- Polym. Chem.
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2014
- Volume
- 5
- Issue
- 17
- Pages
- 5168-5174
- ISSN
- 1759-9954 (ISSN-L)
- 1759-9962
- OpenAlex
- W2125795299
- Cited by
- 163
- References
- 8
- FWCI
- 9.89
- 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: Highly pH-sensitive polyurethane exhibiting shape memory and drug release. https://app.cochat.ai/papers/10.1039/c4py00474d
- The paper
- Chen, H., Li, Y., Liu, Y., Gong, T., Wang, L., & Zhou, S. (2014). Highly pH-sensitive polyurethane exhibiting shape memory and drug release. Polym. Chem. https://doi.org/10.1039/c4py00474d
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.