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以苯乙烯(St)、马来酸酐(MA)、香豆素苯乙烯醚化物(CS)为单体,通过自由基溶液聚合合成了双亲性交替共聚物P(St/CS-alt-MA),用凝胶渗透色谱、核磁共振等对聚合物结构进行表征,并对其溶液自组装及组装体的乳化性进行了研究.结果表明双亲性P(St/CS-alt-MA)可以在选择性溶剂中进行自组装形成马来酸酐单元为亲水微区、CS与苯乙烯单元为疏水微区的胶体粒子,用紫外分光光度计,XPS,TEM研究了聚合物胶体粒子性质,结果显示,P(St/CS-alt-MA)在水溶液中可以形成两亲性聚合物胶体粒子,亲水单元在胶粒表面富集,该两亲性聚合物胶体粒子具有良好的乳化性能.
The amphiphilic alternating copolymer P (St / CS-alt-MA) was synthesized by free radical polymerization using styrene (St), maleic anhydride (MA) and coumarin styryl etherified (CS) , The structure of the polymer was characterized by gel permeation chromatography and nuclear magnetic resonance, and the self-assembly of the solution and the emulsification of the assembly were studied. The results showed that the amphiphilic P (St / CS-alt-MA) The self-assembly of the colloidal particles in the solvent was carried out to form the colloidal particles with maleic anhydride units as hydrophilic micro-zones and CS and styrene units as hydrophobic micro-zones. The properties of polymer colloidal particles were studied by UV spectrophotometer, XPS and TEM. Amphiphilic polymer colloidal particles can be formed in aqueous solution by P (St / CS-alt-MA). The hydrophilic units are enriched on the surface of the colloidal particles. The amphiphilic polymer colloidal particles have good emulsifying properties.