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A Study on the Process in MMA/IPMI/Styrene Terpolymerization  

Park Jong-Kyoung (Department of Chemistry, Korea University)
Yoon Sung-Cheol (Photonic & Electronic Materials Team, Korea Research Institute of Chemical Technology)
Jin Jung-Il (Department of Chemistry, Korea University)
Lee Chang-Jin (Photonic & Electronic Materials Team, Korea Research Institute of Chemical Technology)
Publication Information
Polymer(Korea) / v.30, no.4, 2006 , pp. 326-331 More about this Journal
Abstract
MMA(methyl methacrylate)/IPMI(N-isopropyl maleimide) copolymers are one of the well known heat resistant materials for POF(plastic optical fiber). However, because of the large difference in the reactivity ratio between MMA and IPMI$(r_1/r_2=1.72:0.17)$, the compositional drift occurs during the polymerization process which causes the deterioration of the physical properties of these copolymers. In this paper, we report that the compositional drift of the copolymer could be reduced by the addition of styrene (St) which increased the reactivity of IPMI in the MMA/IPMI copolymerization system and conversion was also increased by 1.5 or 2 times. The MMA/IPMI/St terpolymer had higher refractive index than the MMA/IPMI copolymer which depended on the contents of sytrene.
Keywords
POF; heat resistant; MMA; IPMI; styrene; terpolymer;
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