Citation: ZHOU Xiangfeng, ZHAO Ruinian. STUDIES ON THE POLYMERIZATION OF 2,2,6,6-TETRAMETHYL PIPERIDINYL METHACRYLATE*[J]. Chinese Journal of Polymer Science, ;1985, 3(2): 96-102. shu

STUDIES ON THE POLYMERIZATION OF 2,2,6,6-TETRAMETHYL PIPERIDINYL METHACRYLATE*

Received Date: 20 January 1983

The radical homo-and co-polymerization of 2,2,6,6-tetramethyl piperidinyl methacrylate (TM-PM) with various initiators have been studied. It was found that, with azo-type initiators, the poly-merization proceeded readily, while with acyl peroxide initiators, the polymerization was inhibitedeffectively because of the formation of the stable TMPM-oxyl radical, identified by ESR. Thisobservation was further confirmed by the absence of inhibition effect on the addition of 2,2,6,6-tetramethyl 4-piperidinol to the polymerization system,whereas remarkable inhibition was observed on the addition of the stable 2,2,6,6-tetramethyl 4-piperidinol N-oxyl radical.The reaction mechanism was discussed.We also found that when TMPM reacted with BPO in petroleum ether,N-benzoyloxy 2,2,6,6-tetramethyl 4-piperidinyl methacrylate was formed,and this novel compound has been characterized with IR,ESR,NMR and Mass Spectroscopy.
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