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Synthesis and functionalities of poly(N-vinylalkylamide). IV. Synthesis and free radical polymerization of N-vinylisobutyramide and thermosensitive properties of the polymer

✍ Scribed by Kazuo Suwa; Yoshihiro Wada; Yoshihiro Kikunaga; Keitaro Morishita; Akio Kishida; Mitsuru Akashi

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 132 KB
Volume: 35
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(19970715)35:9<1763::aid-pola17>3.0.co;2-3

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✦ Synopsis

Pyrolysis of ( N-a-isopropoxyethyl)isobutyramide, which was obtained by the reaction of isobutyramide, 2-propanol, and acetaldehyde in the presence of conc. sulfuric acid, produced N-vinylisobutyramide (NVIBA). The free radical polymerization of NVIBA was carried out in various solvents in the presence of a radical initiator. It was found that the polymerizability of NVIBA is similar to that of N-vinylacetamide. The resulting polyNVIBA showed a lower critical solution temperature (LCST) sharply at 39ЊC. Thermosensitive properties of polyNVIBA were investigated in comparison with poly(N-isopropylacrylamide).

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