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Preparation And Characterization Of Some New Acrylate Monomers And Research Of Their Polymerization

Posted on:2011-03-14Degree:MasterType:Thesis
Country:ChinaCandidate:L LiuFull Text:PDF
GTID:2121360305984934Subject:Materials Science and Engineering
Abstract/Summary:PDF Full Text Request
Several new monomers were synthesized and polymerization conditions were studied at different initiators.The process of the preparation consists of:1,Trans-β-N, N diethyl amino methacrylate was synthesized via the methyl propargyl (MP) and diethylamine. The effects of temperature, reactant ratio and catalyst (Ph3P) were investigated,and a free radical,anionic polymerization, as well as MMA, St of polymerization were studied.The results show that,The yield of trans-β-N, N diethyl amino methacrylate could reach 70; a preliminary polymerization study found that:Trans-β-N, N diethyl amino methacrylate can hardly be polymerized;2,Free radical and anionic polymerization of the trans-β-methoxy methacrylate (purchase) were studied.The results show that,the polymerization is difficult;3,αand trans-β-methoxy-acrylic acid methyl ester was synthesized via the methyl propargyl (MP),Ph3P and methanol.The effects of reactant ratio was investigated,and a free radical, anionic polymerization, as well as MMA, St of polymerization were studied.The results show that,αand trans-β-methoxy-acrylic acid methyl ester 80% with proportion about 1:1.α-methoxy-acrylic acid methyl ester can only be radical copolymerized with styrene producing copolymer with more styrene units;4,1,1-diphenyl ethylene (DPE) was synthesized by organic synthesis and its structural characterization and purity were analyzed,97.7% purity. A polymerization of DPE and St was studied.
Keywords/Search Tags:methyl propargyl (MP), methyl methacrylate (MMA), 1,1-diphenylethylene (DPE), triphenylphosphine (Ph3P), organic copper lithium, anionic polymerization
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