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ID 115214
著者
Yamamoto, Hiroaki The University of Tokushima
キーワード
Syndiotactic N-alkylacrylamide copolymers
Chemical composition
Phase-transition behavior
資料タイプ
学術雑誌論文
抄録
Radical copolymerizations of N-isopropylacrylamide (NIPAAm) and N-n-propylacrylamide (NNPAAm) in various ratios were carried out in toluene at –40 °C in the presence of 3-methyl-3-pentanol to prepare syndiotactic copolymers with racemo dyad contents of ca. 70%. It was revealed that copolymers containing more than 92.5 mol% NNPAAm units exhibited large phase-transition hysteresis of their aqueous solutions. Sequence analysis suggested that intramolecular hydrogen-bonding of contiguous NNPAAm units in syndiotactic stereosequences in the dehydrated state were responsible for induction of the large hysteresis.
掲載誌名
Polymer
ISSN
00323861
cat書誌ID
AA11537383
出版者
Elsevier
52
23
開始ページ
5277
終了ページ
5281
発行日
2011-10-01
権利情報
© 2011. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
EDB ID
出版社版DOI
出版社版URL
フルテキストファイル
言語
eng
著者版フラグ
著者版
部局
理工学系