Polymerization Behavior of Formylstyrene

From copolymerization of styrene (M1) with p-formylstyrene (M2), monomer reactivity ratios were determined to be r1=0.16 and r2=1.43. Q and e values of p-formylstyrene were calculated to be 2.36 and 0.41, respectively, from the ratios. Crosslinked polymers were prepared by copolymerization of formyl...

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Bibliographic Details
Published inKOBUNSHI RONBUNSHU Vol. 45; no. 6; pp. 485 - 490
Main Authors TAKEDA, Kunihiko, AKIYAMA, Minoru, YAMAMIZU, Takafumi
Format Journal Article
LanguageJapanese
Published The Society of Polymer Science, Japan 1988
Subjects
Copolymer Composition
m -Divinylbenzene
Monomer Reactivity Ratio
p-Formylstyrene
Q and e Values
Stepwise Calculation
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Summary:From copolymerization of styrene (M1) with p-formylstyrene (M2), monomer reactivity ratios were determined to be r1=0.16 and r2=1.43. Q and e values of p-formylstyrene were calculated to be 2.36 and 0.41, respectively, from the ratios. Crosslinked polymers were prepared by copolymerization of formylstyrene with divinylbenzene. When each monomer used is a mixture of meta and para isomers, the density of crosslinks varied greatly with progress of polymerization. In contrast, in the copolymerization of p-formylstyrene with m-divinylbenzene, the density of crosslinks was found nearly constant all the time during polymerization. Stepwise calculations of the copolymer composition were performed using the above data, and the most appropriate set of Q and e values of m-divinylbenzene could be chosen among several sets so far reported.
ISSN:0386-2186
1881-5685
DOI:10.1295/koron.45.485