ポリ（Ｎ‐イソプロピルアクリルアミド）／ポリ（エチレングリコール）ジブロック共重合体の性質に及ぼす合成条件の影響

DOI
  • 清水 秀信
    神奈川工科大学工学部応用化学科
  • 横原 智美
    神奈川工科大学工学部応用化学科
  • 和田 理征
    神奈川工科大学工学部応用化学科
  • 岡部 勝
    神奈川工科大学工学部応用化学科
  • WANG Li
    Department of Biochemistry, Molecular Biology, and Cell Biology, Northwestern University

書誌事項

タイトル別名
  • Influence of Preparation Conditions of Poly (ethylene glycol)/Poly (N-isopropylacrylamide) Block Copolymers on Their Properties

抄録

Thermosensitive block copolymers of poly (N-isopropylacrylamide) (PNIPAM) and poly (ethylene glycol) (PEG) were synthesized by the redox reaction of the hydroxyl end group of PEG with a ceric ion. The effects of polymerization temperature and NIPAM concentration on the molecular weight of block copolymers were investigated. The molecular weight of the copolymer was found to increase in an exponential manner with an increase in NIPAM concentration when the polymerization was performed below the lower critical solution temperature (LCST) of PNIPAM. At a temperature above the LCST, on the other hand, few NIPAM monomers were polymerized regardless of NIPAM concentration, and the molecular weight of the block copolymers obtained was almost the same as that of the original PEG. These results indicate that above the LCST polymeric micelles are formed during polymerization and the polymerization hardly proceeds within the hydrophobic core of the polymeric micelles.

収録刊行物

  • 高分子論文集

    高分子論文集 61 (12), 640-642, 2004

    公益社団法人 高分子学会

キーワード

詳細情報 詳細情報について

  • CRID
    1390001206521814912
  • NII論文ID
    130003837869
  • DOI
    10.1295/koron.61.640
  • ISSN
    18815685
    03862186
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • Crossref
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

問題の指摘

ページトップへ