N. V. Zakharova, G. K. Lebedeva, N. N. Saprykina, E. V. Kruchinina, E. A. Novozhilova, S. V. Kononova
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Influence of the Type of Precipitant on the Structure of Phase-inversion Polyamido-imide Membranes
Porous phase-inversion membranes of complex morphology were obtained on the basis of aromatic polyamidoimides with different numbers of hydroxyl groups in the diamine component of the repeating unit. The influence of the quality of the precipitant (nonsolvent) applied in membrane preparation (i.e., the use of “strong” or “weak” nonsolvent) on structural and morphological features of polymer membranes of various chemical compositions was studied. Investigation of dilute solutions of membrane-forming polymers by optical methods revealed the changes in the state of the system both in the presence of a solvent and in the presence of a nonsolvent. On the basis of the obtained results, it was possible to estimate the sensitivity of the studied polymer/solvent/nonsolvent system to changes in the copolymer composition (a number of hydroxyl groups in the repeating unit).
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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