Anionic Polymerization of 1, 3-Cyclohexadiene-Arrangement of 1, 2-and 1, 4-Units

The arrangement of the 1, 2-and 1, 4-units of poly (1, 3-cyclohexadiene) (PCHD), obtained by anionic polymerization with the n-butyllithium (n-BuLi) /N, N, N′, N′-tetramethyl-ethylenediamine (TMEDA) initiator system, was investigated. The 1, 2-/1, 4-unit molar ratio of PCHD was about 1 during the po...

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Bibliographic Details
Published inKOBUNSHI RONBUNSHU Vol. 61; no. 3; pp. 200 - 202
Main Author NATORI, Itaru
Format Journal Article
LanguageEnglish
Japanese
Published The Society of Polymer Science, Japan 01.01.2004
Subjects
1, 2-Unit
1, 4-Unit
Arrangement
Poly (1, 3-cyclohexadiene)
Polymer Chain Structure
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Summary:The arrangement of the 1, 2-and 1, 4-units of poly (1, 3-cyclohexadiene) (PCHD), obtained by anionic polymerization with the n-butyllithium (n-BuLi) /N, N, N′, N′-tetramethyl-ethylenediamine (TMEDA) initiator system, was investigated. The 1, 2-/1, 4-unit molar ratio of PCHD was about 1 during the polymerization of 1, 3-cyclohexadiene with the n-BuLi/TMEDA (4/5) system. Each polymer sample showed only one glass transition temperature (Tg), independent of the number average molecular weight (Mn). This method allows the preparation of poly (1, 3-cyclohexadiene) s having quasi alternated 1, 2-/1, 4-unit sequences in the polymer chain.
ISSN:0386-2186
1881-5685
DOI:10.1295/koron.61.200