功能性多聚烯的合成使用化双氧化-合金复合体
1Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
Journal of the American Chemical Society
|May 18, 2012
概括
新的阴离子复合物使乙烯能够与多种极性单体共聚,产生具有随机功能组的线性聚合物. 这扩大了对功能性多聚烯的催化选择,超出了现有的氨酸硫酸盐系统.
科学领域:
- 聚合物化学 聚合物化学
- 有机金属化学 有机金属化学
- 材料科学 材料科学 材料科学
背景情况:
- 乙烯与极性乙烯单体的共聚合具有挑战性,因为催化剂与极性功能组不兼容.
- 现有的催化剂,比如布鲁克哈特型α-二胺复合物,对工业相关的极性单体具有有限的适用性.
- 硫酸联复合物是这种反应的已知的催化剂类.
研究的目的:
- 探索由双氧化物 (BPMO) 结合的复合体在与各种极性乙烯单体的乙烯共聚化中的有效性.
- 展示一种替代的催化系统,用于生产线性功能性多聚烯.
- 为了比较BPMO结合催化剂与现有系统的性能.
主要方法:
- 合成和表征含有双氧化物 (BPMO) 连接体的阴阳复合物.
- 使用开发的催化剂,以乙烯与极性乙烯基单体 (乙酸乙烯,烯酸,乙烯基,乙烯基,乙烯基单体) 的共聚合反应.
- 对共聚物微结构的分析,包括极群的线性和分布.
主要成果:
- 阴离子-BPMO复合物有效催化了乙烯与一系列极性乙烯单体的共聚.
- 由此产生的共聚物表现出高度线性微观结构和极性功能组的随机分布.
- 这些催化剂表现出良好的活性,在特定的单体组合中表现优于某些已建立的系统.
结论:
- 阴离子-BPMO复合物代表了一种可行的和活跃的催化系统,用于合成线性功能型聚烯.
- 这项工作扩大了催化乙烯与极性单体共聚的范围.
- 双氧化联复合物为硫酸系统提供了一种新的替代方案,用于生产功能性多聚烯.
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