Citation: Li-qin Xie a, Jun-xiao Yang a, Fang-hua Zhu b, Hai-jun Yang a, Cai-lin Liu a, Lin zhang b. SYNTHESIS AND CHARACTERIZATION OF BENZOCYCLOBUTEN-4-YL ACRYLATE MONOMER AND ITS RADICAL POLYMERIZATION[J]. Chinese Journal of Polymer Science, ;2010, 28(6): 877-885. doi: 10.1007/s10118-010-9160-4 shu

SYNTHESIS AND CHARACTERIZATION OF BENZOCYCLOBUTEN-4-YL ACRYLATE MONOMER AND ITS RADICAL POLYMERIZATION

Received Date: 27 October 2009
Revised Date: 17 December 2009

A benzocyclobuten-4-yl acrylate (1) monomer was prepared by esterification of 4-hydroxybenzocyclobutene with acryloyl chloride. The radical homopolymerization of 1 and copolymerization of 1 with styrene or n-butyl acrylate were carried out to produce linear polymers 2a, 2b and 2c. Heating of these linear polymers under thermal initiation gave corresponding cross-linked polymers 3a, 3b and 3c. The ring-opening reaction in the cross-linking process was confirmed by on-line infrared spectra. Differential scanning calorimetry showed that the glass transition temperatures of linear polymers 2a and 2b were 83.2°C and 68.1°C, respectively. Thermogravimetric analysis of the cross-linked polymers showed that they all exhibited good thermal stability.
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