SURFACE-PROPERTIES OF POLYPROPYLENE FILMS AS BIOMATERIALS

被引：20

作者：

YUI, N ^{[1
]}

SUZUKI, Y ^{[1
]}

MORI, H ^{[1
]}

TERANO, M ^{[1
]}

机构：

[1] JAPAN ADV INST SCI & TECHNOL,SCH MAT SCI,TATSUNOKUCHI,ISHIKAWA 92312,JAPAN

来源：

POLYMER JOURNAL | 1995年 / 27卷 / 06期

关键词：

POLYPROPYLENE; SURFACE CRYSTALLINITY; SURFACE WETTABILITY; PROTEIN ADSORPTION; ALBUMIN; FIBRINOGEN; BIOMATERIALS;

D O I：

10.1295/polymj.27.614

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Surface properties of polypropylene films were investigated as the preliminary study on the design of blood compatible polyolefin surfaces. It was observed that the surface crystallinity of polypropylene films was well correlated with bulk crystallinity. Smaller contact angles of polypropylene films appeared with higher surface crystallinity, which indicates that crystalline regions have higher surface free energy than amorphous regions on these surfaces. Minimum value in both albumin and fibrinogen adsorption was observed on polypropylene surfaces with a particular surface crystallinity (ca. 50%). The control of surface crystallinity including the size and distribution of crystalline and amorphous regions can dominate the fate of plasma protein adsorption. Thus, it is suggested that surface crystallinity is one of the dominant factors in the design of blood compatible polyolefin surfaces.

引用

页码：614 / 622

页数：9

共 17 条

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