CAO Xianyi, WANG Qiang, ZHU Hui, WU Guanying. SYNTHESIS OF TELECHELIC POLYISOBUTYLENE——THE REACTION OF 1.1-DIPHENYL ETHYLENE CAPPING ON POLYISOBUTYLENE CARBOCATION[J]. Acta Polymerica Sinica, 1996,(5):633-636.
CAO Xianyi, WANG Qiang, ZHU Hui, WU Guanying. SYNTHESIS OF TELECHELIC POLYISOBUTYLENE——THE REACTION OF 1.1-DIPHENYL ETHYLENE CAPPING ON POLYISOBUTYLENE CARBOCATION[J]. Acta Polymerica Sinica, 1996,(5):633-636.DOI:
the controllable terminationis usually required This paper reported the reaction of 1.1-diphenyl ethylene(DPE)with polyisobutylene(PIB) cation.It was found that DPE can quickly react with PIBcation at low temperature and form more stable 1.1-diphenyl alkyl cation.The lowtemperature is favorable for capping reaction
because the reaction is then reversible.The ratio of DPE to initiator have no great influence on the reaction.Theunsymmetric telechelic PIB with double bond completely at the chain end wasobtained.