Synthesis of θ-shaped poly(THF) by electrostatic self-assembly and covalent fixation with three-armed star telechelics having cyclic ammonium salt groups

被引：58

作者：

Tezuka, Y ^{[1
]}

Tsuchitani, A ^{[1
]}

Yoshioka, Y ^{[1
]}

Oike, H ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Organ & Polymer Mat, Meguro Ku, Tokyo 1528552, Japan

来源：

MACROMOLECULES | 2003年 / 36卷 / 01期

关键词：

D O I：

10.1021/ma0209850

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A series of theta-shaped poly(tetrahydrofuran), poly(THF), of different molecular weights were effectively synthesized by an electrostatic self-assembly and covalent fixation process using a three-armed, star telechelic precursor having N-phenylpyrrolidinium salt groups carrying a trimesate, 1,3,5-benzene tricarboxylate, counteranion (1/trimesate). Under appropriate dilution in acetone, theta-shaped poly(THF)s (2) were obtained in 40-49% isolated yields through the covalent conversion of an electrostatic self-assembly of a single polymer precursor unit with retaining the balance of the charges between cations and anions. The isolated product was unequivocally characterized by means of H-1 NMR, IR, SEC as well as a reversed-phase chromatography (RPC), and MALDI-TOF MASS techniques.

引用

页码：65 / 70

页数：6

共 38 条

[1] Characterization and fluorescence of macrocyclic polystyrene by anionic end to end coupling. Role of coupling reagents [J].