| 초록 |
In-chain multi-functionalized polybutadienes with 82%, 71% and 66% vinyl content via thiol-ene reaction by using benzyl mercaptan as the functional agents have been synthesized at 40℃ with 2,2-azobis(4-methyl-2,4-dimethylralerouitrile) as the radical initiator for the purpose of the higher single thio-ene conversion and lower intramolecular cyclization. After comparison, we can know that with the decrement of vinyl content of polybutadiene, the total C=C functional group interconversion was decreased because of the low reactivity of 1,4-units vinyl groups. However, the RS functionality and single thiol-ene conversion of the polybutadienes with 71% and 66% vinyl content were much higher than that of 82% vinyl content and the intramolecular cyclization conversion were much lower. |
