| 一代端羧基超支化聚合物的制备与表征 |
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| 引用本文： | 强涛涛,张国国,罗敏,王学川.一代端羧基超支化聚合物的制备与表征[J].精细化工,2012,29(7):692-696. |
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| 作者姓名： | 强涛涛 张国国 罗敏 王学川 |
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| 作者单位： | 1. 陕西科技大学轻化工助剂化学与技术教育部重点实验室,陕西西安,710021
2. 陕西科技大学化学与化工学院,陕西西安,710021 |
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| 基金项目： | 国家自然科学基金，陕西省科技计划项目，陕西科技大学博士启动基金，陕西科技大学研究生创新基金 |
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| 摘 要： | 首先采用二乙醇胺(DEA)与丙烯酸甲酯(MA)反应得到AB2型单体N,N-二羟乙基-3-氨基丙酸甲酯;然后以三羟甲基丙烷为核,在对甲苯磺酸的催化下,与N,N-二羟乙基-3-氨基丙酸甲酯反应得到端羟基超支化聚合物(HPAE-OH);最后采用顺丁烯二酸酐对端羟基超支化聚合物进行端基改性,制得端羧基超支化聚合物(HPAE-C)。优化的一代端羧基超支化聚合物的合成条件为:催化剂质量分数0.7%(基于反应物料总质量),反应投料比n(OH)∶n(马来酸酐)=1∶1.1,反应时间4 h,反应温度80℃。采用IR、1HNMR和13CNMR对端羧基超支化聚合物的分子结构进行了表征,采用表面张力仪研究了聚合物的表面活性。
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| 关 键 词： | 端羧基 超支化聚合物 制备 表征 皮革化学品 |
Preparation and Characterization of One Generation of Carboxyl-terminated Hyperbranched Polymers |
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| QIANG Tao-tao
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ZHANG Guo-guo
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LUO Min
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WANG Xue-chuan.Preparation and Characterization of One Generation of Carboxyl-terminated Hyperbranched Polymers[J].Fine Chemicals,2012,29(7):692-696. |
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| Authors: | QIANG Tao-tao ZHANG Guo-guo LUO Min WANG Xue-chuan |
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| Affiliation: | 1(1.Key Laboratory of Auxiliary Chemistry & Technology for Light Chemical Industry,Shaanxi University of Science & Technology,Xi′an 710021,Shaanxi,China;2.College of Chemistry and Chemical Engineering,Shaanxi University of Science & Technology,Xi′an 710021,Shaanxi,China) |
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| Abstract: | A series of hyperbranched polymers(amine-ester) with terminal alcohol group (HPAE-OH) were synthesized by polycondensation of N,N-diethylol-3-amine-methylpropionate〔prepared by Michaeladdition reaction of methyl acrylate(MA) with diethanolamine(DEA) 〕as an AB2-type monomer withtrimethylol propane (TMP) as the core moiety,proceeding in one-step procedure in the melt with p-toluenesulfonic acid(p-TSA) as catalyst.Then,it was modified by maleic anhydride to obtainhyperbranched polymer with terminal carboxyl group(HPAE-C).The appropriate reaction conditionswere optimized: catalyst dosage 0.7%(based on the total mass of reaction materials),molar feed ratio n(OH)∶n(maleic anhydride)=1∶1.1,reaction time 4 h and temperature 80 ℃.The obtained polymerswere characterized by means of IR,1HNMR and 13CNMR,and the surface activity of the polymer wasinvestigated by surface tension. |
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| Keywords: | terminal carboxyl group hyperbranched polymer preparation characterization leather chemicals |
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