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“Living” radical polymerization of methyl methacrylate with diethyl 2,3-dicyano-2,3-diphenylsuccinate as a thermal iniferter

✍ Scribed by Shu-Hui Qin; Kun-Yuan Qiu; Graham Swift; David G. Westmoreland; Shuguang Wu


Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
157 KB
Volume
37
Category
Article
ISSN
0887-624X

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✦ Synopsis


The bulk polymerization of methyl methacrylate (MMA) initiated with diethyl 2,3-dicyano-2,3-diphenylsuccinate (DCDPS) was studied. This polymerization showed some "living" characteristics; that is, both the yield and the molecular weight of the resulting polymers increased with reaction time, and the resultant polymer can be extended by adding MMA. The molecular weight distribution of PMMA obtained at high conversion is fairly narrow (M w /M n ϭ 1.24Ϸ1.34). It was confirmed that DCDPS can serve as a thermal iniferter for MMA polymerization by a "living" radical mechanism. Furthermore, the PMMA obtained can act as a macroinitiator for radical polymerization of styrene (St) to give a block copolymer.


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