Formation of Popcorn Polymer in the Spontaneous Polymerization of 3, 5-Dimethylstyrene

The popcorn polymer (PCP) of 3, 5-dimethylstyrene (DMS), insoluble in solvents investigated (e. g., benzene, toluene, tetrahydrofuran, and 1, 4-dioxane), was formed in the temperature range 30 to 40°C. The popcorn copolymerization of DMS with methyl acrylate and styrene occurred over the whole range...

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Published inKOBUNSHI RONBUNSHU Vol. 39; no. 3; pp. 121 - 126
Main Authors TATSUMI, Masakazu, YAMAMOTO, Seika
Format Journal Article
LanguageEnglish
Japanese
Published The Society of Polymer Science, Japan 25.03.1982
Subjects
3, 5-Dimethylstyrene
Popcorn copolymerization
Popcorn Polymer
Popcorn Polymerization
spontaneous Polymerization
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Summary:The popcorn polymer (PCP) of 3, 5-dimethylstyrene (DMS), insoluble in solvents investigated (e. g., benzene, toluene, tetrahydrofuran, and 1, 4-dioxane), was formed in the temperature range 30 to 40°C. The popcorn copolymerization of DMS with methyl acrylate and styrene occurred over the whole range of monomer composition in feed at 30°C, whereas the popcorn copolymerization of DMS with metyl methacrylate occurred only at the mole fraction of methyl methacrylate in feed smaller than 0.3. The composition of popcorn copolymer was almost identical with that of monomer in feed, indicating that the popcorn copolymerization proceeded without the selection of monomer. The composition curves of the copolymer soluble in benzene, which was fbrmed simultaneously with PCP, were in good agreement with those of the conventional redical copolymerization. The composition of first developed particle of DMS-PCP differed from those of both the above popcorn and copolymers.
ISSN:0386-2186
1881-5685
DOI:10.1295/koron.39.121