CAJ | 학술논문

水介质中以表面引发ATRP法在单分散的二氧化硅微球表面接枝了一层PMMA聚合物刷，然后通过水解得到PMAA聚电解质刷。通过控制ATRP的反应时间得到了不同分子量且分子量分布较窄的聚电解质刷。结果表明，接枝硅烷偶联剂APTES的最佳反应方式为静置反应，对于1 g微球最佳接枝量为4 mL，聚电解质刷的分子量随ATRP反应时间增长而增大。
수개질중이표면인발ATRP법재단분산적이양화규미구표면접지료일층PMMA취합물쇄，연후통과수해득도PMAA취전해질쇄。통과공제ATRP적반응시간득도료불동분자량차분자량분포교착적취전해질쇄。결과표명，접지규완우련제APTES적최가반응방식위정치반응，대우1 g미구최가접지량위4 mL，취전해질쇄적분자량수ATRP반응시간증장이증대。
Mono-dispersed silica nanoparticles were grafted by PMMA brushes in the aqueous media by ATRP. And then the nanoparticles with PMAA brushes were obtained after hydrolysis of PMMA. The poly-electrolyte brushes with different molecular weight and low PDI could be prepared via adjusting the ATRP reaction time. Results showed that the molecular weight increased with the ATRP reaction time. Grafting of the coupling agent achieved its best effect when the reaction was taken without stirring,1 g nanoparticles and 4 mL APTES was the optimal ratio for the functionalization.