无光催化剂且蓝光诱导的醋酸乙烯酯在室温下的可逆加成-断裂链转移聚合反应
Photocatalyst-Free and Blue Light-Induced RAFT Polymerization of Vinyl Acetate at Ambient Temperature.
作者信息
Ding Chunlai, Fan Caiwei, Jiang Ganquan, Pan Xiangqiang, Zhang Zhengbiao, Zhu Jian, Zhu Xiulin
机构信息
Suzhou key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China.
出版信息
Macromol Rapid Commun. 2015 Dec;36(24):2181-5. doi: 10.1002/marc.201500427. Epub 2015 Oct 7.
Vinyl acetate is polymerized in the living way under the irradiation of blue light-emitting diodes (LEDs) or sunlight without photocatalyst at ambient temperature. 2-(Ethoxycarbonothioyl)sulfanyl propanoate is exclusively added and acts as initiator and chain transfer agent simultaneously in the current system. Poly(vinyl acetate) with well-regulated molecular weight and narrow molecular weight distribution (Đ < 1.30) is synthesized. Near quantitative end group fidelity of polymer is demonstrated by nuclear magnetic resonance (NMR) and matrix-assisteed laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS).
醋酸乙烯酯在蓝光发光二极管（LED）照射或阳光下，于室温且无光催化剂的条件下以活性方式聚合。在当前体系中专门添加了2-（乙氧羰基硫代）硫烷基丙酸酯，其同时充当引发剂和链转移剂。合成了分子量调控良好且分子量分布窄（Đ < 1.30）的聚醋酸乙烯酯。通过核磁共振（NMR）和基质辅助激光解吸/电离飞行时间质谱（MALDI-TOF MS）证明了聚合物的端基保真度接近定量。
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