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[1]童小丽,吴璧耀*.两亲性超支化树脂的合成及其对钛白粉分散性的影响[J].武汉工程大学学报,2011,(05):74-77.[doi:10.3969/j.issn.16742869.2011.05.020]
　TONG Xiao li,WU Bi yao.Synthesis of amphiphilic hyperbranched polymer and its action on titanium dioxide dispersion[J].Journal of Wuhan Institute of Technology,2011,(05):74-77.[doi:10.3969/j.issn.16742869.2011.05.020]
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两亲性超支化树脂的合成及其对钛白粉
分散性的影响(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2011年05期
页码:
74-77
栏目:
材料科学与工程
出版日期:
2011-05-31

文章信息/Info

Title:
Synthesis of amphiphilic hyperbranched polymer and
its action on titanium dioxide dispersion
文章编号:
16742869(2011)05007404
作者:
童小丽; 吴璧耀*
武汉工程大学材料科学与工程学院,湖北 武汉 430074
Author(s):
TONG Xiaoli;  WU Biyao
School of Materials Science and Engineering，Wuhan Institute of Technology, Wuhan 430074, China
关键词:
超支化聚合物; 两亲性聚合物; 分散性
Keywords:
hyperbranched polymers;  amphiphilic polymers;  dispersible stability
分类号:
TQ323.4
DOI:
10.3969/j.issn.16742869.2011.05.020
文献标志码:
A
摘要:
用二羟甲基丙酸和三羟甲基丙烷经缩聚反应合成末端为羟基的超支化聚酯,再以硬脂酸和邻苯二甲酸酐对该超支化聚酯进行改性,制备了两亲性超支化聚合物.利用红外光谱对AB2单体、端羟基型超支化聚酯、两亲性超支化聚合物的分子结构进行了表征.研究了反应温度、反应时间、单体浓度对共聚物性质的影响.实验结果表明,在真空下合成超支化聚酯的最佳温度为180 ℃,时间为5 h,两亲性聚合物的黏度随硬脂酸改性羟基的增加而减小.讨论了该树脂在钛白羟基树脂甲苯体系中对钛白的分散性与分散稳定性的影响,结果表明酸值越小,聚合物对钛白的分散性和分散稳定性越好;硬脂酸改性端羟基越多,聚合物对锐钛型钛白的分散性越好.
Abstract:
Hydroxyltheminated hyperbranched polymers derived from dimethylol propionic acid （DMPA）and trimethylolpropane （TMP）was synthesized by esterification, and then modified by stearic acid and phthalic anhydride to Synthesize Amphiphilic Hyperbranched PolymerThe chemical structures of the AB2 monomer,polymers and the whole reaction process were all characterized by IR spectrumThe influences of the monomer concentration,reaction time and reaction temperature on the properties of hyperbranched polymers were investigated,which illustrated that the best reaction temperature and time was 180 ℃ and 5 hours to synthesize hyperbranched polymers under vacuum environmentThe viscosity of the target product increased gradually with the increasing of hydroxyl endgroups modified by staric acidWe also discussed the effect of amphiphilic hyperbranched polymers on the dispersions and dispersible stability fot titaium dioxide in toluene systemThe results showed that the dispersity and dispersible stability of titanium dioxide increased along with the acid value of the product decreasedThe dispersity increased with more hydroxyl end groups

参考文献/References:

［1］Yan D Y, Hou J,Zhu X Y, et al.A new approach to control crystallinity of resulting polymers: selfcondensing ring opening polymerization［J］.Macromol Rapid Commun,2000,21:557561.
［2］Bednarek M, Biedron T, Helinski J, et al.Branched polyether with multiple primary hydroxyl groups: polymerization of 3ethyl3hydroxymethloxetane［J］.Macromol Rapid Commun,1999,20:369372.
［3］Jikei M, Chon S H, Kakimoto M, et al. Synthesis of hyperbranched aromatic polyamide from aromatic diamine and trimesic acid［J］.Macromolecules,1999,32(6):20612064.
［4］Emrick T,Chang H T,FrechetJ M J.An A2B3 approach to hyperbranched aliphatic polyethersontaining chain endepoxy substituents［J］.Macromolecules,1999,32(6):63806382.
［5］Jikei M, Kakimoto M. Synthesis and characteristics of hyperbranched polybenzoxazoles via poly (Ohydroxyamide) precursorsJ Polym Sci Part A:Polym Chem,2004,42:12931309.
［6］谭惠民,罗运军.树枝状大分子［M］.北京:化学工业出版社,2002.
［7］吴璧耀,黄俊,童小丽.一种聚酯型超支化聚合物颜料分散剂及其制备方法.中国:200810196976.5［P］:2009-1-28.
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备注/Memo

备注/Memo:
收稿日期:20101013作者简介:童小丽(1982),女,湖北监利人,硕士研究生.研究方向:材料物理与化学.指导老师:吴璧耀,男,硕士,教授,硕士生导师.研究方向:功能高分子材料.
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