Citation: FENG Pinzhen. FREE RADICAL RING OPENING POLYMERIZATION OF CYCLIC ACRYLATES[J]. Chinese Journal of Polymer Science, ;1992, 10(4): 350-355. shu

FREE RADICAL RING OPENING POLYMERIZATION OF CYCLIC ACRYLATES

FENG Pinzhen

Received Date: 20 November 1991

Cyclic acrylates, 2,2- dimethyl-5-methylene-1 , 3-dioxolan-4 -one and 2- phenyl-5-methylene-1,3-dioxolan-4-one, were synthesized successfully. The monomers were characterized by 1H NMR, 13C NMR, IR and elemental analysis or HRMS. Polymerization of the monomers were carried out at 120℃ with di-t-butylperoxide as initiator. The polymers were studied by1H NMR, 13C NMR, UV and hydrolysis. The molecular weights of the resulting polymers were estimated by viscosity measurement and the extent of ring opening was estimated also by 1H NMR and hydrolysis of the polymers and further confirmed by UV spectra.
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