Aromatic aldehyde functionalized polycaprolactone and polystyrene macromonomers: Synthesis, characterization and aldehyde–aminooxy click reaction
作者:Prakash S. Sane、Bhausaheb V. Tawade、Dnyaneshwar V. Palaskar、Shamal K. Menon、Prakash P. Wadgaonkar
DOI:10.1016/j.reactfunctpolym.2012.06.020
日期:2012.10
of styrene. Well-defined polycaprolactone macromonomers ( M n GPC : 2600–19400, PDI: 1.37–1.47) and polystyrene macromonomers ( M n GPC : 2800–28200, PDI: 1.11–1.16) with bis-aldehyde functionality were synthesized. The kinetic study of styrene polymerization showed controlled polymerization behaviour. The presence of aldehyde functionality in macromonomers was confirmed by 1H NMR spectroscopy. The
摘要新的双醛官能化引发剂,即4,4'-(4,4'-(5-羟基戊烷-2,2-二基)双(4,1-亚苯基))双(氧基)二苯甲醛(1)和从市售的4,4'-双(4-羟苯基)戊酸开始合成4,4'-双(4-(4-(甲酰苯氧基)苯基)戊基戊酸2-酯)(2),分别使用这些引发剂。 ,用于ε-己内酯的开环聚合和苯乙烯的原子转移自由基聚合,定义明确的聚己内酯大分子单体(M n GPC:2600–19400,PDI:1.37-1.47)和聚苯乙烯大分子单体(M n GPC:2800–28200,PDI :合成具有双醛官能度的1.11-1.16),苯乙烯聚合反应的动力学研究表明聚合行为是受控的,通过1H NMR光谱证实了大分子单体中醛官能度的存在。 醛官能团的反应性通过聚己内酯大分子单体与O-(2-叠氮基乙基)羟胺的醛-氨氧基点击反应来证明,该反应以定量方式进行而没有骨架降解。