Preparation of porous membranes grafted with poly(spiropyran-containing methacrylate) and photocontrol of permeability

Graft copolymerization of spiropyran‐containing methacrylate (SPMMA) and acrylamide (AM) onto the surface of a porous polymer membrane was carried out. The permeability of the graft membrane varied with ultraviolet (UV) ‐ or visible‐light irradiation. It was found that the change by UV‐light irradia...

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Veröffentlicht in:	Journal of applied polymer science 1994-03, Vol.51 (12), p.2027-2033
Hauptverfasser:	Chung, Dong-June, Ito, Yoshihiro, Imanishi, Yukio
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Exact sciences and technology Exchange resins and membranes Forms of application and semi-finished materials Polymer industry, paints, wood Technology of polymers
Online-Zugang:	Volltext
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Zusammenfassung:	Graft copolymerization of spiropyran‐containing methacrylate (SPMMA) and acrylamide (AM) onto the surface of a porous polymer membrane was carried out. The permeability of the graft membrane varied with ultraviolet (UV) ‐ or visible‐light irradiation. It was found that the change by UV‐light irradiation of the permeability of the H2O/CH3OH mixture through the SPMMA/AM‐grafted membrane is related to the change by UV‐light irradiation of the solubility, i.e., the chain extension, of the graft copolymer in the mixed solvent. When the free SPMMA/AM copolymer becomes insoluble in the H2O/CH3OH mixture by UV‐light irradiation, the permeability of the H2O/CH3OH mixture through the SPMMA/AM‐grafted membrane is increased. © 1994 John Wiley & Sons, Inc.
ISSN:	0021-8995 1097-4628
DOI:	10.1002/app.1994.070511207