Synthesis of functional polyphenylenes from substituted hydroquinones via nickel(0)-catalyzed polymerization of their bismesylates
Synthesis of functional polyphenylenes from substituted hydroquinones via nickel(0)-catalyzed polymerization of their bismesylates
复制标题
通过镍（0）催化双甲磺酸盐聚合反应，由取代氢醌合成功能性聚亚苯基
DOI：
10.1021/ma00124a005
复制
发表时间：
1995
期刊：
影响因子：
5.5
通讯作者：
D. Hill
中科院分区：
文献类型：
--
作者：
V. Percec;J. Bae;Mingyang Zhao;D. Hill
本文报道了一种制备聚苯撑的新方法。它由双[（甲基磺酰基）氧基]衍生物（即，亚芳基二甲磺酸酯）。所用的Ni（0）催化剂由NiCl2（PPh3）2、Zn、Et4NI在THF、二氧六环或DMAc中原位生成。考察了溶剂、温度、附加配体以及单体取代基的大小和电子性质对其聚合性能的影响。通过选择合适的取代基，可以得到可溶性的聚对苯撑和聚间苯撑。聚（对苯撑）的数均分子量（相对于聚苯乙烯标准）高达20 030（DP = 101）得到。
This paper reports the elaboration of a novel synthetic method for the preparation of polyphenylenes. It consists of the Ni(0)-catalyzed polymerization of bis[(methylsulfonyl)oxy] derivatives (i.e., arylene bismesylates) of substituted hydroquinones. The Ni(0) catalysts used were generated in situ from NiCl 2 (PPh 3 ) 2 , Zn, Et 4 NI in THF, dioxane, or DMAc. The influence of solvent, temperature, additional ligands, and the size and electronic properties of the substituent groups of the monomers on their polymerizability was investigated. Soluble poly(p-phenylene)s and poly(m-phenylene)s can be obtained by a proper selection of their substituents. Poly(p-phenylene)s with number-average molecular weights (relative to polystyrene standards) of up to 20 030 (DP = 101) were obtained.