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梳形聚合物PAA-g-MPEG的合成及溶解度参数 被引量:1

Synthesis and Solubility Parameter of Comb PAA-g-MPEG
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摘要 首先采用甲氧基聚乙二醇单醚(MPEG)和丙烯酸(AA)合成了具有反应活性的大单体甲氧基聚乙二醇单醚丙烯酸酯(MPEGAA),然后以亚硫酸氢钠为还原剂和分子量调节剂,在水溶液中将MPEGAA与AA共聚合成了聚丙烯酸接枝甲氧基聚乙二醇梳形聚合物(PAA-g-MPEG)。采用红外光谱(FT-IR)和核磁共振(1H-NMR)对MPEGAA和PAA-g-MPEG的结构进行证实。PAA-g-MPEG的分子量随聚合反应温度提高以及亚硫酸钠用量增加而下降,而亚硫酸钠用量对分子量的影响更显著。PAA-g-MPEG的色散分量、极化分量、氢键分量和溶解度参数分别为18.15(J/cm3)1/2、0.82(J/cm3)1/2、10.42(J/cm3)1/2和20.94(J/cm3)1/2。 The active macromer,polyethylene glycol monomethoxyl ether monoacrylate(MPEGAA),was firstly synthesized using polyethylene glycol monomethoxyl ether(MPEG) and acrylic acid(AA),and the comb poly(acrylic acid)grafted methoxyl polyethylene glycol(PAA-g-MPEG) was synthesized by free radical copolymerization of the active MPEGAA with AA in the presence of sodium sulphite(NaHSO3) as a reducer and chain transfer agent.The structure of the MPEGAA and the PAA-g-MPEG was confirmed through Fourier transform infrared spectrum(FT-IR) and 1H-nuclear magnetic resonance spectrum(1H-NMR) analysis,respectively.The molecular weight of the PAA-g-MPEG decreases with increasing the polymerization temperature and the content of NaHSO3.Results also show that the content of NaHSO3 has a marked effect on the molecular weight of PAA-g-MPEG.The dispersion parameter,polar parameter,hydrogen parameter and solubility parameter of the PAA-g-MPEG are 18.15(J/cm3)1/2,0.82(J/cm3)1/2,10.42(J/cm3)1/2 and 20.94(J/cm3)1/2,respectively.
出处 《高分子材料科学与工程》 EI CAS CSCD 北大核心 2011年第3期35-38,共4页 Polymer Materials Science & Engineering
基金 江苏省自然科学基金项目(BK2008507) 江苏省自然科学基金重点项目(BK2007722)
关键词 甲氧基聚乙二醇单醚 聚丙烯酸接枝甲氧基聚乙二醇 梳形聚合物 溶解度参数 MPEG PAA-g-MPEG comb polymer solubility parameters
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  • 1汪剑炜,王正东,胡黎明.超分散剂的应用[J].涂料工业,1995,25(1):29-33. 被引量:40
  • 2Shar J A, Obey T M, Cosgrove T. Adsorption studies of polyethers: part Ⅱ : adsorption onto hydrophilic surfaces[J]. Colloid Surf. A, 1999, 150: 15-23.
  • 3Ye Y S, Huang H L, Hsu K C. A water-soluble acrylate/sulfonate copolymer I: its synthesis and dispersing ability on cement[J]. J. Appl. Polym. Sci., 2006, 100: 2490-2496.
  • 4Petit J Y, Wirquin E, Vanlaove Y, et al. Yield stress and viscosity equations for mortars and self-consolidating concrete [J]. Cem. Concr. Res., 2007, 37: 655-670.
  • 5Ridi F, Dei L, Fratini E, et al. Hydration kinetics of tri-calcium silicate in the presence of superplasticizers[J]. J. Phys. Chem. B, 2003, 107: 1056-1061.
  • 6Hanehara S, Yeanda K. Interaction between cement and chemical admixture from the point of cement hydration, absorption behaviour of admixture, and paste rheology[J]. Gem. Concr. Res. , 1999, 29: 1159-1165.
  • 7Ran Q P, Somasundaran P, Miao C W, et al. Effect of the length of the side chains of comb-like copolymer dispersants on dispersion and theological properties of concentrated cement suspensions[J]. J . Colloid Interf. Sci., 2009, :326: 624-633.
  • 8Bai Y, Gao W P, Yan J J, et al. Co-aggregation process of poly (ethylene oxide )-b-polybutadiene/poly ( acrylic acid ) based on evolution of interpolymer hydrogen bonding in solutions [J]. Polymer, 2008, 49: 2099-2106.
  • 9Yang L, Zhao Z X, Wei J, et al. Micelles formed by self-assembling of polylactide/lpoly (ethylene glycol ) block copolymers in aqueous mlutions[J]. J Colloid Interf. Sci., 2007, 314: 470-477.

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