000			01609nam a22002177a 4500
100			_aYu, Z.
245			_aPREPARATION AND PROPERTIES OF CHLORINATED POLYISOBUTYLENE ELASTOMER BY ONE-STEP POLYMERIZATION
260			_bRubber Chemistry and Technology, 96(1): 2023. 130-148. _c2023
520			_aCationic copolymerization of isobutylene and chlorostyrene was investigated using the Lewis acid initiator system. Titanium (IV) chloride (TiCl4) and ethylaluminum sesquichloride (AlEt1.5Cl1.5) were used as the co-initiators, and 2-chloro-2,4,4-trimethylpentane (TMPCl) and H2O were used as the main initiators. The influences of monomer feeding ratio and reaction time were studied. The reaction mechanism was proposed by studying the reaction kinetics. It was found that when p-chloromethylstyrene (p-ClMSt) was used, benzyl chloride was easily involved in the initiation reaction stage, leading to the formation of branched polymer. When p-chlorostyrene (p-ClSt) was used as a co-monomer, living copolymerization was achieved and no branching structure formed. Isobutylene, isoprene, and p-ClSt were synthesized with the AlEt1.5Cl1.5 initiator system. The high-molecular-weight halogenated ternary copolymer was successfully prepared by one-step polymerization. Vulcanization and mechanical property studies were also performed.
650			_aPolymerization
700			_aZhao, Z.
700			_aWei, X.
700			_aYan, P.
700			_aLiu, R.
700			_aJin, Y.
700			_aGong, G.
700			_aXu, X.
700			_aWu, Y.
856			_uhttps://doi.org/10.5254/rct.23.77969
942			_cJS
999			_c75314 _d75314