Complexes of polyethyleneimine with perfluorinated carboxylic acids:: Wettability of lamellar structured mesophases

被引：60

作者：

Thünemann, AF ^{[1
]}

机构：

[1] Max Planck Inst Colloids & Interfaces, D-14476 Golm, Germany

来源：

LANGMUIR | 2000年 / 16卷 / 02期

关键词：

D O I：

10.1021/la9907026

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Structures of water-insoluble complexes of polyethyleneimine (PEI) and fluorinated acids, varying in chain length from 4 to 16, were examined via contact angle measurements, X-ray diffraction, and infrared spectroscopy. The wettability of complex surfaces was shown to decrease with increasing chain length. The surface energy of the complexes can be adjusted in the range from about 19 to 9 mN/m. Complexes of PEI with perfluorobutanoic acid and perfluoropentanoic acid are amorphous. Complexes with perfluoroheptanoic acid, perfluorodecanoic acid, and perfluorododecoanoic acid are mesomorphous, while the complex with perfluorohexadecanoic acid is partially crystalline.

引用

页码：824 / 828

页数：5

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