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浙江大学学报(工学版)
J4  2010, Vol. 44 Issue (11): 2179-2182    DOI: 10.3785/j.issn.1008973X.2010.11.024
能源工程     
无助催化剂下钕Schiff碱配合物催化MMA聚合
秦敏锐,李宁
浙江大学 化学系,浙江 杭州 310027
Polymerization of methyl methacrylate catalyzed by novel Nd complex
with Schiff base without of any cocatalyst
QIN Min-rui， LI Ning
Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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摘要：

为了优化甲基丙烯酸甲酯 (MMA)聚合反应的条件,提出将合成的新型稀土钕精氨酸Schiff 碱配合物作为催化剂,催化MMA的聚合.采用核磁共振1HNMR、黏度测量及凝胶渗透色谱 (GPC) 等方法对聚合物的立体规整度、黏均分子量和相对分子质量分布分别进行表征.实验表明，当该配合物用量与单体MMA物质的量比为0.05% 时,无需助催化剂,在80 ℃ 反应20 h,聚合反应的转化率高达93%,聚合物的黏均分子量达到8.3×105,说明该配合物具有优良的催化活性,优化了MMA聚合反应条件.
Abstract:

In order to optimize the conditions of polymerization of methyl methacrylate（MMA）, a novel Nd complex with Larginine Schiff base was synthesized, and applied in the polymerization of methyl methacrylate. The structure of polymethyl methacrylate (PMMA) was characterized by 1H NMR, and the viscosityaverage molecular weight and polydispersity  were measured respectively by viscometry and GPC method. The results showed that 8.3×105 viscosity-average molecular weight of PMMA with 93% conversion was obtained under the optimum condition of 0.05% molar ratio of catalyst to monomer MMA without any cocatalyst, 20 h at 80 ℃, which means that  the Nd complex has high catalytic activity and optimizes the conditions of the polymerization of MMA.
出版日期: 2010-12-23
:  O 631.5  
基金资助:

浙江省自然科学基金资且项目（Y406193).
通讯作者: 李宁，女，副教授.     E-mail: lilgn123@zju.edu.cn
作者简介: 秦敏锐(1984-)，女，安徽阜阳人，硕士生，从事配合物催化聚合反应的研究. E-mail: qinmr66@yahoo.cn
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引用本文:

秦敏锐,李宁. 无助催化剂下钕Schiff碱配合物催化MMA聚合[J]. J4, 2010, 44(11): 2179-2182.

QIN Min-rui， LI Ning. Polymerization of methyl methacrylate catalyzed by novel Nd complex
with Schiff base without of any cocatalyst. J4, 2010, 44(11): 2179-2182.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008973X.2010.11.024    或    http://www.zjujournals.com/eng/CN/Y2010/V44/I11/2179

［1］ 张一烽,曾宪标,沈之荃. 壳聚糖负载稀土催化剂催化甲基丙烯酸甲酯聚合［J］. 高等学校化学学报,1997,18(7):1202-1206．
ZHANG Yifeng, ZENG Xianbiao, SHEN Zhiquan. Polymerization of methyl methacrylate by chitosansupported rare earth catalysts ［J］. Chemical Journal of Chinese Universities, 1997, 18(7): 1202-1206.
［2］ 王耀荣,沈琪,丁元晨. 茂基二苯胺基镱配合物催化甲基丙烯酸甲酯聚合［J］. 应用化学,2000,17(2): 131-133．
WANG Yaorong, SHEN Qi, DING Yuanchen. Catalytic polymerization of methyl methacrylate by diphenylamido ytterbocene complexes ［J］. Chinese Journal of Applied Chemistry, 2000,17(2): 131-133．
［3］ 周双六, 钱慧民, 陈国栋, 等. 几个二价稀土金属配合物的催化甲基丙烯酸甲酯聚合反应活性研究［J］. 安徽师范大学学报：自然科学版, 2008, 31(2): 146-149.
ZHOU ShuangLiu, QIAN HuiMin, CHEN GuoDong, et al. Catalytic activities of some organolanthanide(II) complexes on methyl methacrylate (MMA) polymerization ［J］. Journal of Anhui Normal University: Natural Science, 2008, 31(2): 146-149.
［4］ 姚克敏,李宁,黄巧红. Ln(III)Cu(II)与直链醚氨基酸新型Schiff 碱异核配合物合成和催化［J］. 中国科学B辑,1999,42(1): 53-61．
YAO KeMin, LI Ning, HUANG QiaoHong. Synthesis and catalytic activity of novel heteronuclear Ln(III)Cu(II) complexes with noncyclic polyetheramino acid Schiff base［J］. Science in China B, 1999, 42(1): 53-61．
［5］ 姚克敏,李宁,沈联芳. 多C=N基不对称Schiff碱Ln(III)配合物的合成和催化［J］. 中国科学B辑, 2003, 46(1): 75-83．
YAO Kemin, LI Ning, SHEN Lianfang. Synthesis and catalytic activity of Ln (III) complexes with an unsymmetrical Schiff base including multi C=N groups［J］. Science in China B, 2003, 46(1): 75-83．
［6］ WEI Danyi, LI Ning, LU Gui, et al. Synthesis, catalytic and biological activity of novel dinuclear copper complex with Schiff base ［J］. Science in China B, 2006, 49(3): 225-229．
［7］ MAO Jianyong, LI Ning, LI Haoran, et al. Novel Schiff base complexes as catalysts in aerobic selective oxidation of βisophorone ［J］. Journal of Molecular Catalysis A: Chemical, 2006, 258(1-2, 2): 178-184．
［8］ 郑昌仁. 高聚物相对分子质量及分布［M］ . 北京: 化学工业出版社, 1986 : 364．
［9］ 孙学芹,谢小敏,刘乾才.侧链取代基含有氧原子的环戊二烯与席夫碱混合配体的镧系化合物催化甲基丙烯酸甲酯聚合［J］.分子催化,2004,18(2): 81-86．
SUN Xueqin, XIE Xiaomin, LIU Qiancai. Polymerization of methly methacrylate by lanthanide complexes with Ofunctionalized cyclopentadienyl and the Schiff base ligands ［J］. Journal of Molecular Catalysis (CHINA),2004,18(2): 81-86．
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