Applicability of photochemically generated pendant benzoyl peroxides in both “grafting from” and “grafting to” techniques
作者:Jaroslav Mosnáček、Ivan Lukáč、Monica Bertoldo、Francesco Ciardelli
DOI:10.2478/s11696-012-0250-3
日期:2013.1.1
strategy was successfully adopted to initiate the polymerisation of acrylic or methacrylic acids from the surface of styrene copolymer films containing the initiator precursor in the polymer side chains (BzMA/S and PCOCO/S). The successful surface grafting was proved by contact angles measurement as well as by infrared spectroscopic analysis.
含有侧苯基的甲基丙烯酸甲酯和苯乙烯共聚物,例如1- [4-(2-甲基丙烯酰氧基乙氧基)苯基] -2-苯基-1,2-乙二酮-甲基丙烯酸甲酯(BzMA / MMA),1- [4- (2- methacroyloxyethoxy)苯基] -2-苯基-1,2-乙二酮-共-苯乙烯(的BzMA / S),和1-苯基-2-(4- propenoylphenyl)-1,2- ethanedione-共制备了-苯乙烯(PCOCO / S),并用作光化学生成的过氧化苯甲酰侧基的前体。随后在接枝过程中使用过氧化苯甲酰侧基的分解。采用辐照或辐照与随后热处理的组合,将BzMA / MMA共聚物的薄层接枝到LDPE膜的表面上。接枝导致膜表面的接触角显着减小。成功地采用了相同的活化策略,以从聚合物侧链(BzMA / S和PCOCO / S)中包含引发剂前体的苯乙烯共聚物膜的表面引发丙烯酸或甲基丙烯酸的聚合。通过接触角测