P (VDF-co-CTFE)-g-P2VP amphiphilic graft copolymers: Synthesis, structure, and permeation properties

Byeong Ju Park, Na Un Kim, Du Yeol Ryu, Jong Hak Kim

Research output: Contribution to journalArticle

Abstract

A series of amphiphilic graft copolymers of poly (vinylidene fluoride-co-chlorotrifluoroethylene)-g-poly(2-vinyl pyridine), P (VDF-co-CTFE)-g-P2VP, with different degrees of P2VP grafting (from 26.3 to 45.6 wt%) was synthesized via one-pot atom transfer radical polymerization (ATRP). The amphiphilic properties of P (VDF-co-CTFE)-g-P2VP graft copolymers allowed itself to self-assemble into nanoscale structures. P (VDF-co-CTFE)-g-P2VP graft copolymers were introduced into neat P (VDF-co-CTFE) as additives to form blending membranes. When two different solvents, N-methyl-2-pyrrolidone (NMP) and dimethylformamide (DMF), were used, specific organized crystalline structures were observed only in the NMP systems. P (VDF-co-CTFE)-g-P2VP played a pivotal role in controlling the morphology and pore structure of membranes. The water flux of the membranes increased from 57.2 to 310.1 L m−2 h−1 bar−1 with an increase in the PVDF-co-CTFE-g-P2VP loading (from 0 to 30 wt%) due to increased porosity and hydrophilicity. The flux recovery ratio (FRR) increased from 67.03% to 87.18%, and the irreversible fouling (Rir) decreased from 32.97% to 12.82%. Moreover, the pure gas permeance of the membranes with respect to N2 was as high as 6.2 × 104 GPU (1 GPU = 10–6 cm3[STP]/[s cm2 cmHg]), indicating their possible use as a porous polymer support for gas separation applications.

Original languageEnglish
Pages (from-to)2707-2720
Number of pages14
JournalPolymers for Advanced Technologies
Volume30
Issue number11
DOIs
Publication statusPublished - 2019 Nov 1

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Graft copolymers
Permeation
Membranes
Gases
Fluxes
Dimethylformamide
Atom transfer radical polymerization
Hydrophilicity
Pore structure
Fouling
Pyridine
Polymers
Porosity
Crystalline materials
Recovery
Water
Graphics processing unit
polyvinylidene fluoride
N-methylpyrrolidone

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics

Cite this

@article{5d1a4452b4c843b79389b164c62cc45d,
title = "P (VDF-co-CTFE)-g-P2VP amphiphilic graft copolymers: Synthesis, structure, and permeation properties",
abstract = "A series of amphiphilic graft copolymers of poly (vinylidene fluoride-co-chlorotrifluoroethylene)-g-poly(2-vinyl pyridine), P (VDF-co-CTFE)-g-P2VP, with different degrees of P2VP grafting (from 26.3 to 45.6 wt{\%}) was synthesized via one-pot atom transfer radical polymerization (ATRP). The amphiphilic properties of P (VDF-co-CTFE)-g-P2VP graft copolymers allowed itself to self-assemble into nanoscale structures. P (VDF-co-CTFE)-g-P2VP graft copolymers were introduced into neat P (VDF-co-CTFE) as additives to form blending membranes. When two different solvents, N-methyl-2-pyrrolidone (NMP) and dimethylformamide (DMF), were used, specific organized crystalline structures were observed only in the NMP systems. P (VDF-co-CTFE)-g-P2VP played a pivotal role in controlling the morphology and pore structure of membranes. The water flux of the membranes increased from 57.2 to 310.1 L m−2 h−1 bar−1 with an increase in the PVDF-co-CTFE-g-P2VP loading (from 0 to 30 wt{\%}) due to increased porosity and hydrophilicity. The flux recovery ratio (FRR) increased from 67.03{\%} to 87.18{\%}, and the irreversible fouling (Rir) decreased from 32.97{\%} to 12.82{\%}. Moreover, the pure gas permeance of the membranes with respect to N2 was as high as 6.2 × 104 GPU (1 GPU = 10–6 cm3[STP]/[s cm2 cmHg]), indicating their possible use as a porous polymer support for gas separation applications.",
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P (VDF-co-CTFE)-g-P2VP amphiphilic graft copolymers : Synthesis, structure, and permeation properties. / Park, Byeong Ju; Kim, Na Un; Ryu, Du Yeol; Kim, Jong Hak.

In: Polymers for Advanced Technologies, Vol. 30, No. 11, 01.11.2019, p. 2707-2720.

Research output: Contribution to journalArticle

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