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Research Article

Self-Stabilized Precipitation Polymerization and Its Application

Table 1

Copolymerization results of olefins with MAH. Copolymerization of typical olefins in C4/C5/C9 fractions with MAH.

NameObservationYield

C4 fraction
Butadienedispersion70%
1-Butenedispersion60%
2-Butenesolution0

C5 fraction
1-Pentenedispersion65%
Cyclopentenedispersion60%
2-Methyl-1-butenedispersion70%
2-Methyl-2-butenedispersion40%
2-Pentenesolution0
Isoprenedispersion75%
1,4-Pentadienedispersion70%
1,3-Pentadienedispersion65%
Cyclopentadienedispersion40%

C9 fraction
α-Methyl styrenedispersion60%
Dicyclopentadienedispersion65%
Indenedispersion94.5%

Olefin: MAH is 1:1 (mol), monomers concentration is 20 wt%, AIBN is 3 wt% relative to monomers, and reaction temperature is 70°C for 6 hours.
IA. IA/n-hexane (3/1). Ethyl oenanthate/n-hexane (1/1), AIBN 5 wt%. IA/n-heptane (2/1).