Surface Stability and Functional Property of Polymerized Langmuir—Blodgett Type Films

Motoko Uchida, Tatsuya Tanizaki, Toyoki Kunitake, Tisato Kajiyama

研究成果: Contribution to journalArticle査読

10 被引用数 (Scopus)

抄録

Langmuir-Blodgett (LB) type films, showing highly ordered layer structures, were prepared from two types of polymerizable amphiphiles. One type of the amphiphiles has a polymerizable group in a hydrophilic part, dihexadecyl TV-[11-[[2-(acryloyloxy)ethyl]dimethylammonio]undecanoyl]glutamate bromide (2C16-L-Glu-C11N+Ac), and the other has a polymerizable group in a hydrophobic part, 3-[[ll-(meth-acryloyloxy)undecyl]dodecylmethylammonio]propanesulfonate (MC11C12NS). The LB type films composed of these amphiphiles were polymerized in order to stabilize the surface chemical structure (hydrophilicity or hydrophobicity). The highly oriented bilayer structures were kept even after polymerization. The surface chemical structure of the built-up film composed of 2C16-L-Glu-C11N+Ac was not immobilized by polymerization and the hydrophobic surface changed into the hydrophilic one in water. This result was due to that an intermonolayer polymerization hardly took place. In the case of the LB type films composed of MC11C12NS,the surface chemical structure was stabilized by polymerization and the hydrophilic surface was stable even in air. This result shows that the intermonolayer polymerization progressed in such LB type films. The blood compatibility of the built-up film composed of MC11C12NS which has a sulfonic group in a hydrophilic part was investigated on the basis of the interaction with human blood platelets. The built-up film with sulfonic group orienting normal to the layer surface showed an excellent blood compatibility mainly owing to its negatively charged surface which repels platelets.

本文言語英語
ページ(範囲)2381-2387
ページ数7
ジャーナルMacromolecules
22
5
DOI
出版ステータス出版済み - 9 1 1989

All Science Journal Classification (ASJC) codes

  • 有機化学
  • ポリマーおよびプラスチック
  • 無機化学
  • 材料化学

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