马来松香HEMA酯化物共聚研究
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摘要
将马来松香与甲基丙烯酸-2-羟乙酯(HEMA)酯化物(MRH)分别与甲基丙烯酸甲酯(MMA)和苯乙烯(St)在甲苯溶液中进行了共聚反应,研究了单体比例对其性能的影响,采用红外光谱(FTIR)、核磁共振(NMR)、热重分析(TGA)和差示扫描量热仪(DSC)等对聚合物结构和性能进行了表征,为开发松香基精细化工产品提供理论基础。FTIR和NMR的结果证实:成功制得了MRH与MMA或St的共聚物。当MRH用量较少时,共聚物能够溶解在甲苯中;当其用量较多时,共聚物在甲苯中处于溶胀状态,表明形成了交联网络结构。TGA和DSC结果表明:共聚物中MRH较多时热稳定性较高,而玻璃化转变温度较低。
The ester of maleic rosin and 2-hydroxylethyl methacrylate was used as macromolecular monomer( MRH),and then it was copolymerized with styrene( St) or methyl methacrylate( MMA) in the presence of toluene. The effects of monomer ratio on the properties of the copolymer were investigated. The copolymerization was synthesized successfully by charactering with FTIR and HNMR. The copolymers were soluble in toluene with small amount of MRH. However,they swelled in the toluene with high MRH. The high contents of MRH improved the thermal stability of the copolymers,when the glass transition temperature decreased which was confirmed by thermal gravimetric analysis and differential scanning calorimeter.
The ester of maleic rosin and 2-hydroxylethyl methacrylate was used as macromolecular monomer( MRH),and then it was copolymerized with styrene( St) or methyl methacrylate( MMA) in the presence of toluene. The effects of monomer ratio on the properties of the copolymer were investigated. The copolymerization was synthesized successfully by charactering with FTIR and HNMR. The copolymers were soluble in toluene with small amount of MRH. However,they swelled in the toluene with high MRH. The high contents of MRH improved the thermal stability of the copolymers,when the glass transition temperature decreased which was confirmed by thermal gravimetric analysis and differential scanning calorimeter.
引文
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[13]余彩莉,赵烈,张发爱,等.氢化松香与HEMA酯化物自聚与共聚研究[J].化学研究与应用,2009,21(6):801-804.
[14]余彩莉,张发爱,陈林.松香顺酐加成物与甲基丙烯酸羟乙酯的酯化反应[J].桂林工学院学报,2008,28(3):492-496.
[2]Berglin M,Elwing H.Erosion of a model rosin-based marine antifouling paint binder as studied with quartz crystal microbalance with dissipation monitoring(QCM-D)and ellipsometry[J].Prog.Org.Coat.,2008,61(1):83-88.
[3]Lee J S,Hong S I.Synthesis of acrylic rosin derivatives and application as negative photoresist[J].Eur.Polym.J.,2002,38(2):387-392.
[4]Poh B T,Giam Y F,Yeong F P A.Tack and shear strength of adhesives prepared from styrene-butadiene rubber(sbr)using gum rosin and petro resin as tackifiers[J].J.Adhes.,2010,86(8):846-858.
[5]Xu J F,Hu H R.Preparation and characterization of styrene acrylate emulsion surface sizing agent modified with rosin[J].J.Appl.Polym.Sci.,2011,123(1):611-616.
[6]Nande V S,Barabde U V,Morkhade D M,et al.Investigation of PEGylated derivatives of rosin as sustained release film formers[J].AAPS PharmSciTech,2008,9(1):105-111.
[7]Mustata F R,Tudorachi N.Epoxy resins cross-linked with rosin adduct derivatives.Cross-linking and thermal behaviors[J].Ind.Eng.Chem.Res.,2010,49(24):12414-12422.
[8]Nie Y M,Yao X D,Lei F H.Sonochemical synthesis of maleated rosin[J].Chin.J.Chem.Eng.,2008,16(3):365-368.
[9]Atta A M,Elsaeed A M.Use of rosin-based nonionic surfactants as petroleum crude oil sludge dispersants[J].J.Appl.Polym.Sci.,2011,122(1):183-192.
[10]Morkhade D M,Nande V S,Barabde U V,et al.A comparative study of aqueous and organic-based films and coatings of PEGylated rosin derivative[J].Drug Dev.Ind.Pharm.,2008,34(1):24-32.
[11]Atta A M,Nassar I F,Bedawy H M.Unsaturated polyester resins based on rosin maleic anhydride adduct as corrosion protections of steel[J].React.Funct.Polym.,2007,67(7):617-626.
[12]Nande V S,Barabde U V,Morkhade D M,et al.Synthesis and characterization of PEGylated derivatives of rosin for sustained drug delivery[J].React.Funct.Polym.,2006,66(11):1373-1383.
[13]余彩莉,赵烈,张发爱,等.氢化松香与HEMA酯化物自聚与共聚研究[J].化学研究与应用,2009,21(6):801-804.
[14]余彩莉,张发爱,陈林.松香顺酐加成物与甲基丙烯酸羟乙酯的酯化反应[J].桂林工学院学报,2008,28(3):492-496.