INTERFACIAL PHENOMENA IN MACROMOLECULAR SYSTEMS .3. SURFACE FREE-ENERGIES OF POLYETHERS

被引：92
作者：
RASTOGI, AK
STPIERRE, LE
机构：
[1] Department of Chemistry, McGill University, Montreal
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1969年 / 31卷 / 02期
关键词：
D O I：
10.1016/0021-9797(69)90323-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The surface free-energies of the polyethers, polyethylene glycol, polypropylene glycol, polyepichlorohydrin, and polybutylene glycol, their mixtures and their random and block copolymers were determined by means of the pendant drop method. In all cases, except that of random copolymers, surface excesses of the low surface-energy component have been found. In the mixtures of homopolymers the behavior of surface excess isotherms depends on the molecular weight of the two components, while in block copolymers it depends on the degree of polymerization of the base unit. The Belton and Evans Equation for perfect solutions and the Prigogine equation for r-mer solutions have been applied to the experimental data. © 1969.
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页码：168 / &
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