A facile strategy for synthesis of α,α′-heterobifunctionalized poly (ε-caprolactones) and poly (methyl methacrylate)s containing “clickable” aldehyde and allyloxy functional groups using initiator approach
作者:Prakash S. Sane、Bhausaheb V. Tawade、Indravadan Parmar、Savita Kumari、Samadhan Nagane、Prakash P. Wadgaonkar
DOI:10.1002/pola.26598
日期:2013.5.1
polymerization of methyl methacrylate. Well‐defined α‐aldehyde, α′‐allyloxy heterobifunctionalized poly(ε‐caprolactones) (Mn,GPC: 5900–29,000, PDI: 1.26–1.43) and poly(methyl methacrylate)s (Mn,GPC: 5300–28800, PDI: 1.19–1.25) were synthesized. The kinetic study of methyl methacrylate polymerization demonstrated controlled polymerization behavior. The presence of aldehyde and allyloxy functionality on polymers
两种新的引发剂,分别是4-(4-(2-(4-(烯丙氧基)苯基)-5-羟基戊烷2-基)苯氧基)苯甲醛和4-(4-(烯丙氧基)苯基)-4-(4-含有“可点击的”杂官能团(醛和烯丙氧基)的(4-甲酰基苯氧基)苯基)戊基2-溴-2-甲基戊酸酯是从市售的4,4'-双(4-羟基苯基)戊酸开始合成的。这些引发剂分别用于ε-己内酯的开环聚合和甲基丙烯酸甲酯的原子转移自由基聚合。定义明确的α-醛,α'-烯丙氧基异双功能化聚(ε-己内酯)(M n,GPC:5900–29,000,PDI:1.26-1.43)和聚(甲基丙烯酸甲酯)(M n,GPC:5300–28800,PDI:1.19–1.25)已合成。甲基丙烯酸甲酯聚合反应的动力学研究证明了可控的聚合行为。通过1 H NMR光谱证实了聚合物上醛和烯丙氧基官能团的存在。无醛-氨基氧基和无硫醇金属的双击策略用于证明聚合物上官能团的反应性。©2013 Wiley Periodicals,Inc