Reversible thermally responsive and luminescent coil-rod-coil triblock copolymers

被引：39
|
作者：
Xiao, Xing
Fu, Ya-qin
Zhou, Jian-jun
Bo, Zhi-shan
Li, Lin [1 ]
Chan, Chi-Ming
机构：
[1] Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100080, Peoples R China
[2] Grad Univ, Chinese Acad Sci, Beijing 100080, Peoples R China
[3] Hong Kong Univ Sci & Technol, Dept Chem Engn, Adv Engn Mat Facil, Hong Kong, Hong Kong, Peoples R China
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2007年 / 28卷 / 09期
关键词：
block copolymers; energy transfer; poly(N-isopropylacrylamide); temperature-responsive;
D O I：
10.1002/marc.200700038
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A functional coil-rod-coil triblock copolymer containing a terfluorene unit as the rigid segment and poly(N-isopropylacrylamide) (PNIPAAm) as the flexible block was successfully synthesized via reversible addition-fragmentation chain-transfer (RAFT) polymerization using terfluorene-based dithioester as the RAFT agent. The temperature-responsive optical properties were investigated with the aid of dynamic light scattering and fluorescence techniques. Additionally, the relationship between the optical properties and the reversible phase transition of the doping system formed by blending the copolymer with tetraphenylporphine tetrasulfonic acid was studied. Above the lower critical solution temperature, the energy transfer efficiency decreased as a result indicates that these copolymers have a potential to be used as responsive fluorescent probes in facile detection of dye-labeled biopolymers.
引用
收藏
页码：1003 / 1009
页数：7
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