Interpenetrating polymer networks based on poly(styrene-co-butylacrylate-co-hydroxyethyl methacrylate) and SiO2

• Published in: Journal of applied polymer science Vol. 122; no. 1; pp. 722 - 728
• Main Author: Javaherian Naghash, Hamid
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 05.10.2011; Wiley; Wiley Subscription Services, Inc
• Subjects: Applied sciences; coatings; Composites; Copolymers; Crosslinking; Differential scanning calorimetry; Exact sciences and technology; Forms of application and semi-finished materials; FTIR; Interpenetrating networks; interpenetrating networks (IPN); Materials science; Morphology; Polymer industry, paints, wood; Polymers; Polystyrene resins; Silicones; surfaces; Technology of polymers; Coating material; Emulsion copolymerization; Chemical resistance; Hybrid material; Hydroxyethyl methacrylate copolymer; Experimental study; Butyl acrylate copolymer; Silicon copolymer; Silica; Thermal properties; interpenetrating networks (IPN); coatings; silicones; Sol gel process; surfaces; Morphology; Preparation; FTIR; Concentration effect; Chemical properties; Radical copolymerization; Styrene copolymer
• ISSN: 0021-8995; 1097-4628; 1097-4628
• DOI: 10.1002/app.34030

Copolymer such as poly(styrene‐co‐butylacrylate‐co‐hydroxyethyl methacrylate) p (St‐BA‐HEMA) was prepared via free radical emulsion polymerization method. The resulting copolymer was converted to silicone secondary crosslinked interpenetrating polymer network (IPN) by condensation reaction with tetraethyl orthosilicate (TEOS). The obtained copolymers were characterized by using Fourier transform infrared spectroscopy (FTIR). Thermal properties of the copolymers were studied by using thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Optical microscopy (OM) is used for studying the morphology, and then the effects of silicone concentrations, the reflux time, and composition on the phase morphology of P (St‐BA‐HEMA)‐SiO2 IPNs were discussed. The broadening of the transition region was observed with the prolongation of the reflux time, and the tendency for aggregation of silicone on the surface was observed with Teflon as substrate plate. However, an optically transparent film was easily achieved at higher temperature due to the chemical crosslink and physical entanglement between the two phases of P (St‐BA‐HEMA)‐SiO2. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011