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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 17, Number 5
JKCSEZ 17(5)
October 20, 1973 

Studies on the Anionic Copolymerization of Isocyanates

Isocyanates의 음이온 공중합에 관한 연구
Dong Choo Lee

DMF 및 NaCN 존재하에서 p-tolylisocyanate와 n-hexylisocyanate의 저온 음이온 공중합을 시도하였다. 고웅합체의 분자량 및 구조확인은 각각 삼투압 법과 적외선법에 의하였다. 공중합체 조성분석도 적외선법에 의하였다. 이 공중합체의 공중합 경향은 M2의 반응성이 훨씬 큰 것으로 나타났고 따라서 비 이상형 공중합이었다. 동 mole의 단량체에 의하여 얻어진 공중합체는 rigid한 성질을 나타냈다.

The low temperature anionic copolymerization of p-tolylisocyanate (M1) with n-hexylisocyanate (M2) in DMF was carried out with NaCN. Copolymers were characterized by osmometry and I. R. spectrophotometry. Also copolymer composition was analyzed by spectral measurements. The behavior of this copolymerization system was the type of less ideal, that is the M2 prefers to react exclusively with the same kind of species. The stress-strain behavior of the copolymer obtained from equimolar comonomer feed exhibited somewhat brittle or rigid character.

371 - 377
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