铁体系催化丁二烯聚合的研究—Ⅳ.聚丁二烯的序列结构

摘要/Abstract

摘要： 在聚合温度为-30°～50°范围内,用FeCl₃-(i-C₄H₉)₃Al-phen催化体系合成出(顺1,4-1,2)等二元聚丁二烯,用臭氧解和¹³C-NMR方法研究了它们的序列结构。结果表明,这些聚合物的顺-1,4和1,2-链节都是非交替的。聚合温度高的样品比较接近Bernou-lli无规分布,而聚合温度低的样品的序列排布偏离无规分布。讨论了聚合机理。

Abstract: With the catalyst system, FeCl₃-(i-C₄H₉)₃Al-phen, (cis-1, 4—1, 2)equibinary polybu-tadiene was obtained at the polymerization temperature of-30—50℃. By gas-chromato-graphic analysis of the ozonolysis product of the polymer and ¹³C-NMR determination it was found that the sequence distribution was not of alternating type. The sequence distribution of the polymer at high polymerization temperature appeared near the Ber-noullian statistical and at low temperature it deviated from the random distribution model,The polymerization mechanism has been discussed briefly.

王凤江, 刘国智, 钱保功. 铁体系催化丁二烯聚合的研究—Ⅳ.聚丁二烯的序列结构[J]. 应用化学, 1986, 0(4): 6-12.

Wang Fengjiang, Liu Guozhi, Qian Baogong. STUDIES ON THE POLYMERIZATION OF BUTADIENE IN THE PRESENCE OF IRON CATALYST Ⅳ.THE SEQUENCE STRUCTURE OF POLYBUTADIENE[J]. Chinese Journal of Applied Chemistry, 1986, 0(4): 6-12.

铁体系催化丁二烯聚合的研究—Ⅳ.聚丁二烯的序列结构

STUDIES ON THE POLYMERIZATION OF BUTADIENE IN THE PRESENCE OF IRON CATALYST Ⅳ.THE SEQUENCE STRUCTURE OF POLYBUTADIENE

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