用δ-TiCl3-Et2AlCl淤浆聚合合成乙丙嵌段共聚物的可能性

王立筱; 胡宝元; 黄葆同

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用δ-TiCl3-Et2AlCl淤浆聚合合成乙丙嵌段共聚物的可能性

研究简报 | 更新时间：2021-03-19

- 用δ-TiCl3-Et2AlCl淤浆聚合合成乙丙嵌段共聚物的可能性
- POSSIBILITY OF SYNTHESIS OF ETHYLENE- PROPYLENE BLOCK COPOLYMERS WITH δ- TiCl_3-Et_2AlCl IN SLURRY POLYMERIZATION
- 高分子学报 1984年第4期页码：305-308
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- 纸质出版日期：1984-8-20，
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王立筱, 胡宝元, 黄葆同. 用δ-TiCl3-Et2AlCl淤浆聚合合成乙丙嵌段共聚物的可能性[J]. 高分子学报, 1984,(4):305-308.

WANG Li-xiao, HU Bao-yuan, HUANG Bao-tong. POSSIBILITY OF SYNTHESIS OF ETHYLENE- PROPYLENE BLOCK COPOLYMERS WITH δ- TiCl_3-Et_2AlCl IN SLURRY POLYMERIZATION[J]. Acta Polymerica Sinica, 1984,(4):305-308.
王立筱, 胡宝元, 黄葆同. 用δ-TiCl3-Et2AlCl淤浆聚合合成乙丙嵌段共聚物的可能性[J]. 高分子学报, 1984,(4):305-308. DOI：

WANG Li-xiao, HU Bao-yuan, HUANG Bao-tong. POSSIBILITY OF SYNTHESIS OF ETHYLENE- PROPYLENE BLOCK COPOLYMERS WITH δ- TiCl_3-Et_2AlCl IN SLURRY POLYMERIZATION[J]. Acta Polymerica Sinica, 1984,(4):305-308. DOI：

摘要

Abstract

Possibility was studied of synthesizing polypropylene-ethylene propylene copoly-mer-polypropylene (PP-EPR-PP) triblock copolymer with RR-TiCl3-Et2AlCl in slurry polymerization in heptane. Molecular weight (Mn)of PP increased with polymerization time; [η] of product in polymerization according to PP-EPR-PP scheme also increased with addition of successive blocks. In spite of evidence of chain-transfer (negligible with Et2AlCl)

especially through the isolation of a nonerystalline low MW fraction

it is suggested that block structure is obtainable on assumption of the presence of two di-fferent active centers.

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