Preparation Methods of Macromonomers Containing No Sulfur

Commercially available macromonomers usually contain sulfur and, hence, the functional polymers prepared with the macromonomers are easily subject to photo-degradation. Two preparation methods of macromonomers containing no sulfur by radical polymerization were studied: (1) use of chain transfer age...

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Bibliographic Details
Published inKOBUNSHI RONBUNSHU Vol. 54; no. 7; pp. 421 - 426
Main Authors HIBINO, Hiroshi, KUWANO, Kazuyuki
Format Journal Article
LanguageJapanese
Published Tokyo The Society of Polymer Science, Japan 01.01.1997
Tsukiji daisan nagaoka
Subjects
Functional Polymer
Macromonomer
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Summary:Commercially available macromonomers usually contain sulfur and, hence, the functional polymers prepared with the macromonomers are easily subject to photo-degradation. Two preparation methods of macromonomers containing no sulfur by radical polymerization were studied: (1) use of chain transfer agents with a functional group other than mercaptans, (2) use of initiators with a functional group. Neither was found suitable for preparing macromonomers with molecular weights as low as several thousands. However, initiators with -COOH, such as 4, 4′-azobis (4-cyanovaleric acid) and succinyl peroxide, was useful for preparing macromonomers with high molecular weights.
ISSN:0386-2186
1881-5685
DOI:10.1295/koron.54.421