Structure of Polyacrylonitrile Fibers Produced from N-Methylmorpholine-N-Oxide Solutions


Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Тек жазылушылар үшін

Аннотация

Structural and morphological evolution of polyacrylonitrile (PAN) samples from starting powder of a ternary copolymer to fibers produced from concentrated solutions of PAN in N-methylmorpholine-N-oxide (NMMO) was studied using x-ray diffraction for the first time. X-ray exposures in transmission and reflection geometries allowed the structures of outer and inner parts of the PAN fibers to be differentiated. It was shown that a shell—core structure formed in the precipitation bath during fiber spinning. A comparison of x-ray diffraction patterns of fibers spun using the NMMO process and industrial samples spun from DMSO and aqueous sodium thiocyanate solutions did not reveal fundamental structural differences.

Авторлар туралы

I. Makarov

A. V. Topchiev Institute of Petrochemical Synthesis

Хат алмасуға жауапты Автор.
Email: makarov@isp.ac.ru
Ресей, Moscow

L. Golova

A. V. Topchiev Institute of Petrochemical Synthesis

Email: makarov@isp.ac.ru
Ресей, Moscow

M. Vinogradov

A. V. Topchiev Institute of Petrochemical Synthesis

Email: makarov@isp.ac.ru
Ресей, Moscow

I. Levin

A. V. Topchiev Institute of Petrochemical Synthesis

Email: makarov@isp.ac.ru
Ресей, Moscow

S. Sorokin

A. V. Topchiev Institute of Petrochemical Synthesis

Email: makarov@isp.ac.ru
Ресей, Moscow

Қосымша файлдар

Қосымша файлдар
Әрекет
1. JATS XML

© Springer Science+Business Media, LLC, part of Springer Nature, 2019