新型喹啉衍生物类单体与苯乙烯的原子转移自由基共聚及荧光性能研究

合成了一种新型的喹啉衍生物类单体2,7,7-三甲基-3-乙氧羰基-4-(4-丙烯酰胺苯基)-5-氧代-1,4,5,6,7,8-六氢喹啉(TEOHQ),并通过原子转移自由基聚合(ATRP)的方法制备了TEOHQ与苯乙烯的共聚物。以元素分析,GPC,1H-NMR及荧光发射光谱表征了共聚物。数均分子量(M-n)随转化率的线性增加及相对较窄的分子量分布(M-w/M-n)证明了聚合的可控性。同时,利用Mayo-Lewis公式测定了两种单体的竞聚率。最后,从共聚物荧光发射光谱图中显示出共聚物的最大发射峰位于436 nm处,相对于425 nm处单体TEOHQ的最大发射峰发生了11nm的红移。

Atom Transfer Radical Copolymerization of a Novel Quinoline Derivative Monomer with Styrene and Fluorescent Property

A novel quinoline derivative monomer 2,2,7-trimethyl-3-ethoxycarbonyl-4-(4-acrylamidephenyl)-5-oxo-1,4,5,6,7,8hexhydricquinoline(TEOHQ) was synthesized.The copolymers were prepared by atom transfer radical copolymerization of TEOHQ with styrene.Element analysis,GPC,1H-NMR and fluorescent emission spectroscopy were used to characterize copolymers.The linear increase of number average molecular weight(n) versus conversion and the relatively narrow molecular weight distribution(w/n) confirmed that the copolymerization is controllable.In addition,the reactivity ratios of the monomers TEOHQ and styrene were also measured by the method of Mayo-Lewis.Moreover,we investigated the fluorescent property of the obtained copolymers and these copolymers were exhibited fluorescent emission maxima at 436 nm,there is 11nm red-shift comparing to the monomer TEOHQ(425nm).