Synthesis of amphiphilic copolymers based on acrylates by free-radical polymerization and their application in alkyd emulsions

被引:2
作者
Ni, PH
Jones, FN
Fu, SK [1 ]
机构
[1] Fudan Univ, Dept Macromol Sci, Shanghai 200433, Peoples R China
[2] Fudan Univ, Key Lab Mol Engn Polymers, Shanghai 200433, Peoples R China
[3] Eastern Michigan Univ, Coatings Res Inst, Ypsilanti, MI 48197 USA
来源
JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY | 2000年 / 37卷 / 11期
关键词
amphiphilic copolymers; poly(ethylene glycol); stearyl acrylate; surface tension; alkyd emulsions;
D O I
10.1081/MA-100101161
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Novel amphiphilic copolymers which contained poly(ethylene glycol) side-chain, long-chain alkyl pendant groups, and carboxyl groups have been synthesized by the conventional free-radical copolymerization of special monomers. The products were characterized by analysis of Fourier transform infrared spectroscopy (FT-IR), Gel Permeation Chromatography (GPC), and H-1 NMR. Based on the measurement of surface tension of aqueous copolymer solutions with various concentrations at an air/water interface, the critical micelle concentrations (CMC) was found to be lower along with the increase of copolymer concentration. Experimental results showed that CMC of this kind of amphiphilic polymer appeared in the range of 0.01 similar to0.1 g/L. The amphiphilic polymer was mixed with an anionic surfactant (SDBS) in different proportions at aqueous solution and then successfully used in the preparation of alkyd emulsions. The results were compared with those of alkyd emulsions without polymeric surfactant. Steric stabilization of amphiphilic polymer was investigated by the observation of the stability of alkyd emulsions. The emulsions were stable after resting at ambient temperature for four months.
引用
收藏
页码:1391 / 1406
页数:16
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