等离子体聚合及环氧乙烷在聚硅氧烷表面的接枝

Plasma polymerization and grafting of ethylene oxide on polysiloxane surfaces.

作者信息

Oehr C, Bauser H, Hellwig G, Muller M, Schindler B

机构信息

Fraunhofer-Institut für Granzflächen- und Bioverfahrenstechnik (FhlGB), Stuttgart, Germany.

出版信息

J Biomater Sci Polym Ed. 1992;4(1):13-23.

PMID:1463696

Abstract

Polysiloxane films were prepared by plasma polymerization and dip coating. Upon these films PEG was grafted by conventional methods, and ethylene oxide by plasma activation. Before and after grafting the films were analyzed by contact angle and ESCA measurements as well as by FTIR-ATR-spectroscopy and TOF-SIMS. Furthermore results of protein adsorption measurements are reported. The polysiloxane structures obtained by the plasma polymerization of HMDSO are rather similar to those ones yielded by dip coating. The two types of grafting applied on the polysiloxane substrates led to different structures of the grafted layers as was revealed by TOF-SIMS spectra.

摘要

通过等离子体聚合和浸涂法制备聚硅氧烷薄膜。采用常规方法在这些薄膜上接枝聚乙二醇，并通过等离子体活化接枝环氧乙烷。接枝前后，通过接触角和光电子能谱测量以及傅里叶变换红外衰减全反射光谱和飞行时间二次离子质谱对薄膜进行分析。此外，还报告了蛋白质吸附测量结果。通过六甲基二硅氧烷的等离子体聚合得到的聚硅氧烷结构与浸涂法得到的结构相当相似。飞行时间二次离子质谱光谱显示，应用于聚硅氧烷基底的两种接枝类型导致接枝层结构不同。