摘要
采用2-溴异丁酰溴与β-环糊精(-βCD)上羟基的适度反应得到了多溴代的-βCD(Br-βCD)。用Br-βCD引发N-异丙基丙烯酰胺(NIPAm)发生原子转移自由基聚合(ATRP),合成出约15臂的聚(N-异丙基丙烯酰胺)星状聚合物-βCD-(PNIPAm)15.4。用IR1、H-NMR表征了星状聚合物的结构,以8-苯胺基-1-萘磺酸(ANS)作客体分子,研究了星状聚合物的包合性,结果表明,-βCD-(PNIPAm)15.4具有热敏性和超分子包合性。
A core initiator（Br-βCD） was synthesized by the reaction of β-cylodextrin（β-CD） with 2-bromoisobutyryl bromide. Using the initiator, a star poly（N-isopropylacrylamide） with - 15 arms [β-CD-（PNIPAm）15. 4] was thus obtained through atom transfer radical polymerization （ATRP） of N-isopropylacrylamide （NIPAm）. The structures of the star polymer were characterized using IR and ^1H NMR. The inclusion behaviors of β-CD-（PNIPAm）15. 4 were studied by using ANS as guest molecules. The results show that β-CD-（PNIPAm）15.4 exhibits both themlo-sensitivity and inclusion property.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2011年第4期33-36,共4页
Materials Reports
基金
国家自然科学基金项目(20674061)
