详细信息
[P^O]配体/钯催化剂催化乙烯与丙烯酸甲酯聚合及其共聚合反应
[P^O]Ligands/Pd Catalysts for Polymerization and Copolymerization of Ethylene and Methyl Acrylate
文献类型:期刊文献
中文题名:[P^O]配体/钯催化剂催化乙烯与丙烯酸甲酯聚合及其共聚合反应
英文题名:[P^O]Ligands/Pd Catalysts for Polymerization and Copolymerization of Ethylene and Methyl Acrylate
作者:张丹枫[1];伏艳[1];邓筱娟[1];樊帅[1];李森[1];陈谦[2]
机构:[1]华东理工大学材料科学与工程学院,上海200237;[2]中国石油天然气股份有限公司石油化工研究院大庆化工研究中心,黑龙江大庆163714
年份:2013
卷号:39
期号:4
起止页码:438
中文期刊名:华东理工大学学报(自然科学版)
外文期刊名:Journal of East China University of Science and Technology
收录:CSTPCD;;Scopus;北大核心:【北大核心2011】;CSCD:【CSCD2013_2014】;
基金:中国石油天然气股份有限公司科技风险创新研究项目基金
语种:中文
中文关键词:[P^O]配体;钯催化剂;乙烯聚合;丙烯酸甲酯聚合;乙烯一丙烯酸甲酯共聚
外文关键词:[P()] ligands; palladium catalyst; ethylene polymerization; methyl acrylate polymerization; ethylene-methyl acrylate copolymerization
摘要:合成了2个[P^O]配体2-(二苯基膦)-苯磺酸(简称L1)和2-[二(5-甲基-苯基)膦]-苯磺酸(简称L2),并用1 H-NMR、31P-NMR、MS和IR对配体进行表征。分别采用L1、L2与Pd(OAc)2原位形成的催化体系对乙烯、丙烯酸甲酯进行催化聚合与共聚反应,发现这类催化体系可以在无任何助催化剂的作用下引发聚合反应。以L1/Pd(OAc)2为催化体系研究了不同反应条件对乙烯与丙烯酸甲酯聚合的影响。对于乙烯单体,当n(L1)∶n(Pd(OAc)2)=1∶1时催化活性较n(L1)∶n(Pd(OAc)2)=2∶1时高;对于丙烯酸甲酯单体,当n(L1)∶n(Pd(OAc)2)=2∶1时催化活性较n(L1)∶n(Pd(OAc)2)=1∶1时高;若两者共聚,则当n(L1)∶n(Pd(OAc)2)=1∶1时催化活性更佳。L2/Pd(OAc)2催化体系的活性比L1/Pd(OAc)2催化体系的活性高。
Two [P^ O] ligands, 2-Ibis (phenyl) phosphino] henzenesulphonieacid ( L1 ) and 2-[ bis ( 5 methylphenyl)phosphino]benzenesulphonicacid (L2), were prepared and characterized by ^1H NMR, ^31P NMR, IR and MS. Catalytic systems formed by ligands and Pd(OAc)2 in situ were applied to the polymerization and copolymerization of ethylene and methyl acrylate (MA). The polymerization can be initiated without any co-catalyst. The effects of reaction conditions on polymerization were investigated by L1/Pd(()Ac)e. For ethylene polymerization, the mixture of ligand and Pd(OAc)2 with a mole ratio of 1 : 1 provided higher catalytic activity than that with a mole ratio of 2 : 1, while it is in contrast for MA polymerization, For the copolymerization, it is better with the mole ratio of 1 : 1, L2/Pd(OAc)e displayed higher catalytic activity than L1/Pd(OAc)2.
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