Thermosensitive copolymers having soluble and insoluble monomer units, poly (N-vinylacetamide-co-methyl acrylate)s: Effect of additives on their lower critical solution temperatures

Takeshi Mori, Yasuhisa Fukuda, Hirokazu Okamura, Keiji Minagawa, Seizo Masuda, Masami Tanaka

研究成果: ジャーナルへの寄稿学術誌査読

27 被引用数 (Scopus)

抄録

New thermosensitive polymers were synthesized by copolymerization between N-vinylacetamide (NVA) and methyl acrylate whose homopolymers are soluble and insoluble in water, respectively. The lower critical solution temperature (LCST) of the obtained copolymers ranged between 59 and 83°C, and the LCST increased with an increasing NVA content in the copolymers. The effectiveness of various salts addition on lowering the LCST of the copolymer solutions followed Hoffmeister series. NaCl and Na2SO4 addition linearly lowered the LCST with an increasing salts concentration, and slopes of the lines were almost constant regardless of the copolymer composition. The effectiveness of alcohols with various alkyl chain lengths on lowering the LOST did not follow the viscosity B coefficient values of the alcohols, which was probably the result of preferential adsorption of the alcohols to the copolymer.

本文言語英語
ページ(範囲)2651-2658
ページ数8
ジャーナルJournal of Polymer Science, Part A: Polymer Chemistry
42
11
DOI
出版ステータス出版済み - 6月 1 2004
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • ポリマーおよびプラスチック
  • 有機化学
  • 材料化学

フィンガープリント

「Thermosensitive copolymers having soluble and insoluble monomer units, poly (N-vinylacetamide-co-methyl acrylate)s: Effect of additives on their lower critical solution temperatures」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル