Enhancing Mechanically Induced ATRP by Promoting Interfacial Electron Transfer from Piezoelectric Nanoparticles to Cu Catalysts

• DOI: 10.1021/acs.macromol.7b01597
• Publication Date: 2017-10-04T19:22:23Z
• Authors: Zhenhua Wang; Xiangcheng Pan; Lingchun Li; Marco Fantin; Jiajun Yan; Zongyu Wang; Zhanhua Wang; Hesheng Xia; Krzysztof Matyjas...
• Keywords: Atom-transfer radical-polymerization; Dispersity

A robust mechanically controlled atom transfer radical polymerization (mechano-ATRP) was developed by enhancing the interaction between piezoelectric nanoparticles and ATRP Cu catalysts. The interactions favor a mechano-induced electron from surface of to deactivator CuII/L complex under ultrasonic agitation, promoting formation activator CuI/L complex, thereby increasing rate polymerization. This mechano-ATRP carried out with low loading zinc oxide nanoparticles, providing polymer high end-group fidelity, predetermined molecular weight, dispersity. Propagation chains switched on/off in response ultrasound. effects nature nanoparticle, nanoparticle loading, targeted degrees were investigated evaluate mechanism mechano-ATRP.