Preparation of dual stimuli‐responsive PET track‐etched membrane by grafting copolymer using ATRP. (14th May 2012)

• Record Type: Journal Article
• Authors: Pan, Kai; Ren, Ruimin; Li, Haizhu; Cao, Bing
• Is Part Of: Polymers for advanced technologies. Volume 24:Number 1(2013:Jan.)
• Page Start: 22
• Page End: 27
• Publication Date: 2012-05-14
• Subjects: Polymers -- Periodicals; 668.9
• DOI: 10.1002/pat.3044
• Languages: English
• ISSNs: 1042-7147

Abstract

<abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <p>A dual stimuli‐responsive (pH and thermo) polyethylene terephthalate (PET) track‐etched membrane has been prepared using atom transfer radical polymerization (ATRP). First, ATRP initiator 2‐bromoisobutyryl bromide was anchored onto the membrane surface. Then, 2‐hydroxyethyl‐methacrylate (HEMA) and N‐isopropylacrylamide (NIPAAm) were grafted onto the membrane surface using ATRP. X‐ray photoelectron spectroscopy, ATR‐Fourier transform infrared spectroscopy, scanning electron microscopy and thermogravimetric analysis were used to characterize the membrane structure and thermal properties; water flux measurement was used to investigate the double stimuli‐responsive property of the obtained membrane. The results indicate that the PHEMA and PNIPAAm binary grafted PET track‐etched membrane has double environmental responsiveness. This method provides a potential modification method for preparing functional membranes. Copyright © 2012 John Wiley &amp; Sons, Ltd.</p> </abstract>