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Preparation and Characteristics of Silicone Modified Polyacrylic Hybrid Elastomer  

Lee, Byoung-Chul (Hyperstructured Organic Materials Research Center, Deparment of polymer Science & Engineering, Dankook University)
Kang, Doo-Whan (Hyperstructured Organic Materials Research Center, Deparment of polymer Science & Engineering, Dankook University)
Publication Information
Polymer(Korea) / v.31, no.1, 2007 , pp. 86-91 More about this Journal
Abstract
Polydimethylsiloxane branched HEMA (SH) was Prepared by reacting polydimethylsilorane prepolymer and 2-hydroxyethyl methacrylate (HEMA). Polyacrylate modified Polyorganosiloxane (SMPA) was prepared by polymerization of methacrylic acid(MA), allyl glycidyl ether(AGE), aminopro- pyltrimethoxysilane (APTS), and SH. Their structures were confirmed by the measurement of FTIR and $^1H-NMR$ and thermal properties of SMPA were studied from TGA. Residual weight of SMPA at $400^{\circ}C$ increased according to increasing content of the APTS to 63 from 55%. SMPA sealant was prepared by adding additives, such as viscosity increasing agent, crosslinking agent, and fillers. Adhesion characteristics of SMPA-3 sealant was determined to be maximum load elongation, 2.01 %, and break load elongation, 2.28%. Adhesion characteristics for SMPA sealant prepared from SMPA-3 were better than those for SMPA sealant prepared from SMPA-1 and SMPA-2.
Keywords
polydimethylsiloxane; polyacrylate modified polyorganosiloxane; aminopropyltrimethoxy-silane; sealant;
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