On the initiation of macrovoids in polymeric membranes – effect of polymer chain entanglement

• Published in: Journal of membrane science Vol. 505; pp. 70 - 81
• Main Authors: Hung, Wei-Lun, Wang, Da-Ming, Lai, Juin-Yih, Chou, Shang-Chih
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.05.2016
• Subjects: artificial membranes; Chain entanglement; Chain mobility; Entanglement; Entanglement of polymer chains; Macrovoids; Mathematical models; Membranes; Phase separation; polymers; Relaxation time; rheological properties; separation; Solvents; Time constant; Entanglement of polymer chains; Phase separation; Relaxation time; Macrovoids

The present work investigated the mechanism of macrovoid initiation in polymeric membranes, with focus on the initiation position of macrovoids. The results show that where macrovoids were initiated strongly depended on the polymer concentration in casting solution and the solvency for polymer of th...