The first example of hollow polynaphthoylenebenzimidazole fiber preparation

被引：3

作者：

Skvortsov, Ivan Yu. ^{[1
]}

Varfolomeeva, Lydia A. ^{[1
]}

Vashchenko, Andrey F. ^{[1
]}

Ponomarev, Igor I. ^{[2
]}

Patsaev, Timofey D. ^{[3
]}

Alentiev, Alexander Yu. ^{[1
]}

Kulichikhin, Valery G. ^{[1
]}

机构：

[1] Russian Acad Sci, A V Topchiev Inst Petrochem Synth, Moscow 119991, Russia

[2] Russian Acad Sci, A N Nesmeyanov Inst Organoelement Cpds, Moscow 119334, Russia

[3] Natl Res Ctr, Kurchatov Inst, Moscow 123182, Russia

来源：

MENDELEEV COMMUNICATIONS | 2024年 / 34卷 / 02期

基金：

俄罗斯科学基金会;

关键词：

poly( o-aminophenylene)naphthoylenimide; polynaphthoylenebenzimidazole; hollow fiber; membrane; dry-wet spinning; core-shell structure;

D O I：

10.1016/j.mencom.2024.02.041

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new unique two-stage method for spinning hollow polynaphthoylenebenzimidazole (PNBI) fibers has been proposed. Polyacrylonitrile (PAN) fiber having a porous morphology was coated with poly(o-aminophenylene)naphthoylenimide (PANI-O) precursor to form a composite fiber with a core-shell structure and subsequently this composite fiber precursor was heat treated in air. The inner PAN fiber underwent oxidative cyclization, accompanied by its high shrinkage, while the PANI-O shell, due to heterocyclization, turned into a PNBI-O shell, and the inner space of the hollow fiber was only partially filled with cyclized PAN.

引用

页码：285 / 287

页数：3

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