Membranes of Amphiphilic Polyamide 1012 Prepared via Mixed ‘Non-solvents’ Evaporation Induced Phase Separation

IF 4.1 2区 化学 Q2 POLYMER SCIENCE
Xiang Liu, Jie Qiu, Yu-Ting Gao, Shuo Wang, Joachim Loos, Du-Jin Wang, Xia Dong, Tao Wen
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引用次数: 0

Abstract

Long-chain polyamides (LCPAs) are a class of bio-based polymers that can bridge conventional polyolefins and polycondensates. In this work, taking the advantage of the amphiphilic nature of polyamide 1012 (PA1012), membranes were prepared by using a non-conventional phase separation approach, namely, mixed ‘non-solvents’ evaporation induced phase separation (MNEIPS). PA1012 can be dissolved in a mixture of polar and non-polar solvents, both of which are non-solvents of PA1012. During the sequential evaporation of the two solvents, the phase separation of PA1012 occurred, inducing the formation of porous structures. We investigated the process of membrane formation in detail, with a specific focus on the liquid-liquid and liquid-solid phase transitions involved. Moreover, we studied the influence of critical factors, such as polymer concentration and mixed-solvent ratio, on the morphologies and properties of PA1012 membranes. This study provides new insights into the development of porous materials based on long-chain polycondensates.

混合“非溶剂”蒸发相分离制备两亲性聚酰胺1012膜
长链聚酰胺(LCPAs)是一类生物基聚合物,可以桥接传统的聚烯烃和缩聚物。在本研究中,利用聚酰胺1012 (PA1012)的两亲性,采用一种非常规的相分离方法,即混合“非溶剂”蒸发诱导相分离(MNEIPS)制备了膜。PA1012可以溶解在极性和非极性溶剂的混合物中,这两种溶剂都是非PA1012的溶剂。在两种溶剂的顺序蒸发过程中,PA1012发生相分离,导致多孔结构的形成。我们详细研究了膜的形成过程,特别关注了液-液和液-固相变所涉及的过程。此外,我们还研究了聚合物浓度和混合溶剂比等关键因素对PA1012膜形貌和性能的影响。该研究为基于长链缩聚物的多孔材料的开发提供了新的思路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Chinese Journal of Polymer Science
Chinese Journal of Polymer Science 化学-高分子科学
CiteScore
7.10
自引率
11.60%
发文量
218
审稿时长
6.0 months
期刊介绍: Chinese Journal of Polymer Science (CJPS) is a monthly journal published in English and sponsored by the Chinese Chemical Society and the Institute of Chemistry, Chinese Academy of Sciences. CJPS is edited by a distinguished Editorial Board headed by Professor Qi-Feng Zhou and supported by an International Advisory Board in which many famous active polymer scientists all over the world are included. The journal was first published in 1983 under the title Polymer Communications and has the current name since 1985. CJPS is a peer-reviewed journal dedicated to the timely publication of original research ideas and results in the field of polymer science. The issues may carry regular papers, rapid communications and notes as well as feature articles. As a leading polymer journal in China published in English, CJPS reflects the new achievements obtained in various laboratories of China, CJPS also includes papers submitted by scientists of different countries and regions outside of China, reflecting the international nature of the journal.
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