Journal of Fiber Science and Technology
Online ISSN : 2189-7654
ISSN-L : 2189-7654
一般論文
Synthesis of Chitosan-graft-Poly(vinyl ether) as a Thermoresponsive Water-Soluble Chitosan
Takeshi NamikoshiKazuhito HisadaToshikazu SakaguchiTamotsu Hashimoto
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ジャーナル オープンアクセス

2019 年 75 巻 12 号 p. 193-199

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The successful grafting of controlled-molecular-weight hydrophilic formyl-terminated poly(vinyl ether)s (poly(VE)s) onto chitosan is reported herein. As the chitosan-graft-poly(ethyl vinyl ether) [poly(EVE)] was not completely soluble in the NMR solvent, the degree of substitution could not be determined by 1H NMR spectroscopy. In contrast, synthesis of the chitosan-graft-poly(ethoxyethyl vinyl ether) [poly(EEVE)] was less efficient (degree of substitution being 0.3), but the obtained graft copolymers were soluble in water, and the lower critical solution temperature was determined to be ~35 ̊C. Thus, functional chitosan materials were successfully developed by grafting thermoresponsive formyl-terminated poly(EEVE) onto chitosan.

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© 2019 The Society of Fiber Science and Technology, Japan
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