以1,4-二氯甲氧基丁烷为氯甲基化试剂制备线型氯甲基化酚酞聚芳醚砜

doi:10.3724/SP.J.1095.2011.00035

摘要/Abstract

摘要：

采用1,4-二氯甲氧基丁烷（BCMB）为氯甲基化试剂，在Lewis酸ZnO/1,1,2-三氯乙烷的均相反应体系中高效的进行了酚酞聚芳醚砜（PES-C）的氯甲基化，观察了溶剂和催化剂等因素对氯甲基化反应的影响，得到了PES-C氯甲基化的最佳条件。由1H NMR方法表征了氯甲基化的酚酞聚芳醚砜（CMPES-C）的结构及氯甲基化程度（χCH2Cl-）。实验结果表明，BCMB完全可以替代氯甲醚，在相似的反应条件下对PES-C树脂进行有效的氯甲基化改性，ZnO/1,1,2-三氯乙烷体系在温和的反应条件下可制得适度的（χCH2Cl-为0.2~0.6）且完全线型结构的CMPES-C。

关键词: 二氯甲氧基丁烷, 氯甲基化改性, 酚酞聚芳醚砜

Abstract:

Chloromethylation of phenophthalein polyether sulfone(PES-C) was performed in a homogeneous system using 1,4-bis(chloromethoxyl)butane(BCMB) as the chloromethylation reagent. Chloromethylation of PES-C(CMPES-C) with an appropriate chloromethylation degree and complete linearity was obtained under the optimum reaction conditions. The chemical structures and compositions of the products were characterized by IR and 1H NMR. The chloromethylation degree and properties of CMPES-C, such as solubility in common organic solvents and thermal stability compared with phenophthalein polyether ketone(PEK-C) were also discussed. The chloromethylation degree was determined by 1H NMR integration.

Key words: bis(chloromethoxyl)butane, chloromethylation modification, phenophthalein polyethersulfone

中图分类号:

O631

贾宝珠, 王红华, 周光远, 崔善子. 以1,4-二氯甲氧基丁烷为氯甲基化试剂制备线型氯甲基化酚酞聚芳醚砜[J]. 应用化学, 2011, 28(12): 1360-1363.

JIA Baozhu1,2, WANG Honghua1, ZHOU Guangyuan1*, CUI Shanzi2*. Preparation of Linear Chloromethylated Phenophthalein Polyether Sulfone with 1,4-Bis(chloromethoxyl) butane as Chloromethylated Reagent[J]. Chinese Journal of Applied Chemistry, 2011, 28(12): 1360-1363.

以1,4-二氯甲氧基丁烷为氯甲基化试剂制备线型氯甲基化酚酞聚芳醚砜

Preparation of Linear Chloromethylated Phenophthalein Polyether Sulfone with 1,4-Bis(chloromethoxyl) butane as Chloromethylated Reagent

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