光敏感三臂星形聚[甲基丙烯酸2-(二甲氨基)乙酯]的合成及其光敏性能研究
作者： Jinqiang JIANG , Yunhua GONG , Qiaozhen SHU , Hao CHENG , Xiaoya LIU
DOI: 10.3724/SP.J.1105.2012.11208
关键词:
摘要: 以香豆素为光敏感基元,通过多步反应制备了三臂ATRP引发剂C-Br3,然后以CuBr/PMDETA为催化体系、甲基丙烯酸2-（二甲氨基）乙酯（DMAEMA）为单体,ATRP聚合法制备了三臂星形聚合物C-（PDMAEMA）3.用傅里叶变换红外光谱仪（FTIR）、紫外-可见光分光光度计（UV-Vis）和核磁共振仪（1H-NMR）等对C-Br3及聚合物进行了结构表征.研究表明,该三臂星形聚合物可在水中直接形成胶束,且该聚合物可在365和254 nm交替紫外光照下发生可逆光二聚反应.纳米粒度跟踪显示,光照前其胶束粒径为（87.7±27.8）nm、呈高斯分布;而在365和254 nm光反应后,聚合物胶束粒径大小与分布仅发生微弱变化.这可能是因为在光二聚反应前后,聚合物的双亲结构变化微弱所致.
chinasciencejournal.com参考文章(14)
Jinqiang Jiang, Qiaozhen Shu, Xin Chen, Yiqun Yang, Chenglin Yi, Xiaoqing Song, Xiaoya Liu, Mingqing Chen, Photoinduced Morphology Switching of Polymer Nanoaggregates in Aqueous Solution Langmuir. ,vol. 26, pp. 14247- 14254 ,(2010) , 10.1021/LA102771H
Jinqiang Jiang, Bo Qi, Martin Lepage, Yue Zhao, Polymer Micelles Stabilization on Demand through Reversible Photo-Cross-Linking Macromolecules. ,vol. 40, pp. 790- 792 ,(2007) , 10.1021/MA062493J
William R. Sherman, Eli. Robins, Fluorescence of substituted 7-hydroxycoumarins. Analytical Chemistry. ,vol. 40, pp. 803- 805 ,(1968) , 10.1021/AC60260A045
P. Moeckli, Preparation of some new red fluorescent 4-cyanocoumarin dyes☆ Dyes and Pigments. ,vol. 1, pp. 3- 15 ,(1980) , 10.1016/0143-7208(80)80002-7
Jérôme Babin, Martin Lepage, Yue Zhao, ``Decoration'' of Shell Cross-Linked Reverse Polymer Micelles Using ATRP: A New Route to Stimuli-Responsive Nanoparticles Macromolecules. ,vol. 41, pp. 1246- 1253 ,(2008) , 10.1021/MA702422Y
Meng-Ting Lee, Chia-Kuo Yen, Wen-Ping Yang, Hsian-Hung Chen, Chi-Hung Liao, Chih-Hung Tsai, Chin H. Chen, Efficient green coumarin dopants for organic light-emitting devices. Organic Letters. ,vol. 6, pp. 1241- 1244 ,(2004) , 10.1021/OL049903D
Yun Chen, Juin-Lyang Geh, Copolymers derived from 7-acryloyloxy-4-methylcoumarin and acrylates: 2. Reversible photocrosslinking and photocleavage Polymer. ,vol. 37, pp. 4481- 4486 ,(1996) , 10.1016/0032-3861(96)00300-X
Qi Fu, Liangliang Cheng, Yong Zhang, Wenfang Shi, Preparation and reversible photo-crosslinking/photo-cleavage behavior of 4-methylcoumarin functionalized hyperbranched polyester Polymer. ,vol. 49, pp. 4981- 4988 ,(2008) , 10.1016/J.POLYMER.2008.09.017
X. Zhou, J. Blochwitz-Nimoth, M. Pfeiffer, B. Maennig, J. Drechsel, A. Werner, K. Leo, Inverted transparent multi-layered vacuum deposited organic light-emitting diodes with electrically doped carrier transport layers and coumarin doped emissive layer Synthetic Metals. ,vol. 138, pp. 193- 196 ,(2003) , 10.1016/S0379-6779(02)01265-1
Scott R. Trenor, Allan R. Shultz, Brian J. Love, Timothy E. Long, Coumarins in polymers: From light harvesting to photo-cross-linkable tissue scaffolds Chemical Reviews. ,vol. 104, pp. 3059- 3077 ,(2004) , 10.1021/CR030037C