Ravnsbæk Jens B, Swager Timothy M
Department of Chemistry, Massachusetts Institute of Technology, Massachusetts Avenue 77, Cambridge, Massachusetts 02139, United States.
ACS Macro Lett. 2014 Apr 15;3(4):305-309. doi: 10.1021/mz500098r. Epub 2014 Mar 17.
We report a simple, rapid, and solvent-free methodology for solid-state polymerizations yielding poly(phenylene vinylenes) (PPVs) promoted by ball-milling. This solid-state Gilch polymerization method produces PPVs in as little as five minutes of milling. Detailed investigations of the parameter space governing the solid-state polymerization, i.e., milling time, base strength, solid-state dilution, milling frequency, and size of milling balls, revealed that polymerization by ball-milling is a rapid process achieving molecular number average weights of up to 40 kDa in up to 70% yield. To explore the scope, a solid-state polymerization via the dithiocarbamate precursor route is explored.
我们报道了一种简单、快速且无溶剂的方法，用于通过球磨促进的固态聚合反应制备聚对苯撑乙烯（PPV）。这种固态吉尔奇聚合方法在仅五分钟的研磨时间内就能制备出PPV。对控制固态聚合的参数空间进行了详细研究，即研磨时间、碱强度、固态稀释、研磨频率和研磨球尺寸，结果表明球磨聚合是一个快速过程，能以高达70%的产率实现高达40 kDa的数均分子量。为了探索其适用范围，还探索了通过二硫代氨基甲酸盐前体路线进行的固态聚合。
