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Biocompatible shape‐memory poly(vinyl chloride) with a tunable switching temperature via a plasticization effect
Author(s) -
Zheng Yu,
Yin Min,
Yang Xue,
Li Ying,
Shen Jiabin,
Guo Shaoyun
Publication year - 2019
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.47992
Subject(s) - plasticizer , vinyl chloride , materials science , cyclohexane , biocompatible material , amorphous solid , shape memory alloy , chemical engineering , polymer chemistry , polymer , shape memory polymer , composite material , organic chemistry , chemistry , copolymer , biomedical engineering , medicine , engineering
Biocompatible shape‐memory poly(vinyl chloride) (PVC) with a tunable switching temperature ( T s ) was fabricated via the incorporation of an environmentally friendly plasticizer of 1,2‐cyclohexane dicarboxylic acid diisononyl (DINCH). It was revealed that both of the shape‐memory effect (SME) and T s were significantly influenced by the plasticization effect. With the addition of DINCH, the shape‐fixing ratio ( R f ) showed a slight reduction, whereas the shape‐recovering ratio ( R r ) was greatly enhanced, and T s was decreased from 90 to 47 °C. PVC with 40 phr plasticizer realized an excellent SME with an R f of 97.0% and a R r of 90.1%; this resulted from the formation of an efficient shape‐memory network via the physical crosslinking of the amorphous chains with crystals and rigid chain entanglements. In addition, the blood compatibility of the DINCH‐plasticized PVC was evaluated, and the results indicate that it was of great potential for biomedical applications. Therefore, in this study, we successfully developed a new shape‐memory polymer and provided a promising strategy for achieving SME with tunable T s . © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 47992.