引用本文:
姜杰, 谢本恒, 伍青, 林尚安. 合成高分子量无规聚丙烯——在烷烃溶剂中聚合及性能初步表征[J]. 应用化学,
2000, 17(3): 292-295.
Citation: JIANG Jie, XIE Ben-Heng, WU Qing, LIN Shang-An. Synthesis of High Molecular Weight Atactic Polypropylene——Polymerization in Alkane and Preliminary Characterization of the Products[J]. Chinese Journal of Applied Chemistry, 2000, 17(3): 292-295.
Citation: JIANG Jie, XIE Ben-Heng, WU Qing, LIN Shang-An. Synthesis of High Molecular Weight Atactic Polypropylene——Polymerization in Alkane and Preliminary Characterization of the Products[J]. Chinese Journal of Applied Chemistry, 2000, 17(3): 292-295.
合成高分子量无规聚丙烯——在烷烃溶剂中聚合及性能初步表征
English
Synthesis of High Molecular Weight Atactic Polypropylene——Polymerization in Alkane and Preliminary Characterization of the Products
Abstract:
The propylene polymerization in the presence of monocyclopentadienyltitanium compound and methylaluminoxane(MAO) carried out in an autoclave. The effect of different solvents on the propylene polymerization was compared. With the raise of n(Al)/n(Ti) ratio, the activity of the catalyst increased firstly and then decreased, but the molecular weight of PP was independent of it. The catalytic activity increased linearly with monomer pressure, while the molecular weight of the polymer decreased slightly with an increase in monomer pressure. The products were characterized by 13C NMR, DSC and tensile strength measurement. The high molecular weight atactic polypropylene had a good elasticity.
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