Li Guang, Zheng Haiting, Bai Ruke
CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, People's Republic of China.
Macromol Rapid Commun. 2009 Mar 19;30(6):442-7. doi: 10.1002/marc.200800666. Epub 2009 Jan 20.
A new vinyl aryl azide monomer, 4-azidophenyl methacrylate (APM), has been synthesized and characterized by (1) H NMR and FT-IR spectroscopy. The thermal stability of APM has been investigated by temperature-dependent FT-IR spectroscopy and (1) H NMR, and the monomer has been demonstrated to be quite stable at ambient temperature. Reversible addition-fragmentation chain transfer (RAFT) homopolymerization and copolymerizations of APM with methyl acrylate, methyl methacrylate, and styrene have been carried out at room temperature using a redox initiator, benzoyl peroxide (BPO)/N,N-dimethylaniline (DMA). The results show that the polymerizations bear all the characteristics of controlled/living free-radical polymerizations. Moreover, the cycloaddition of azido group to carbon-carbon double bond can be avoided in the polymerization process at room temperature.
一种新型的乙烯基芳基叠氮单体，甲基丙烯酸4-叠氮苯酯（APM），已通过¹H NMR和傅里叶变换红外光谱（FT-IR）进行了合成与表征。通过变温傅里叶变换红外光谱和¹H NMR研究了APM的热稳定性，结果表明该单体在室温下相当稳定。使用氧化还原引发剂过氧化苯甲酰（BPO）/N，N-二甲基苯胺（DMA）在室温下进行了APM的可逆加成-断裂链转移（RAFT）均聚反应以及APM与丙烯酸甲酯、甲基丙烯酸甲酯和苯乙烯的共聚反应。结果表明，这些聚合反应具有可控/活性自由基聚合的所有特征。此外，在室温下的聚合过程中可以避免叠氮基与碳-碳双键的环加成反应。
