Abstract
Polymethacrylate-containing spiropyran was grafted on a glass filter to control permeation of organic liquid by photoirradiation. The glass filter was at first coupled with octadecyldimethyl-N,N-diethylaminosilane and next subjected to glow-discharge treatment for graft copolymerization of spiropyran-substrated methyl methacrylate (SPMA), (1-(β-methacryloylethyl)-3,3-dimethylindoline-2,2‘-spiro-6‘-nitrospirobenzopyran, and methyl methacrylate (MMA). The surface modifications were monitored by X-ray photoelectron spectroscopy. The surface wettability was altered by these treatments. An SPMA/MMA copolymer in toluene was soluble under irradiation of ultraviolet light but was insoluble under irradiation of visible light, while the copolymer was soluble in N,N-dimethylformamide (DMF) irrespective of photoirradiation. Toluene permeation through a glass filter grafted with SPMA/MMA copolymer increased by ultraviolet-light irradiation, and decreased by visible-light irradiation. DMF permeation did not depend on the photoirradiation. These results demonstrated that the permeation of organic liquid through a glass filter can be controlled by the solubility, i.e., the extension/contraction of polymer chains grafted on the surface.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
