橡胶技术网

合成橡胶工业
CHINA SYNTHETIC RUBBER INDUSTRY
2010 Vol.33 No.6 P.407-412

 橡胶技术网

Lewis酸改性烷基锂负离子聚合研究进展Ⅳ.第3代引发体系R3Al/NaH络合物

王德充　 梁爱民　

摘　要：烷基铝(R3Al)与简便易得的碱金属氢化物生成的杂合物是苯乙烯高温本体聚合的有效引发剂,特别对于R3Al/NaH是价廉的无烷基锂定量引发苯乙烯负离子聚合的引发体系.当NaH用量稍大于R3Al时,使每个原始NaH分子生成1个聚苯乙烯链.添加四氢呋喃后,即使[Al]/[Na](摩尔比)值大于1也能得到活性聚合体系.这种引发体系在经济上的优势引起负离子聚合工业界的关注.
关键词：烷基铝;碱金属氢化物;氢化钠;苯乙烯;负离子聚合
分类号：TQ316.32+4 　文献标识码：A
文章编号：1000-1255(2010)06-0407-06

Research development on Lewis acids modified alkyl lithium initiated anionic polymerization Ⅳ.The third generation initiating systems with alkylaluminum/sodium hydride

Wang Dechong　 Liang Aimin　

作者简介：王德充(1936-),男,教授级高级工程师,中国石化北京燕山分公司研究院技术顾问.
作者单位：王德充（中国合成橡胶工业协会,北京,100011）　
　　　　　梁爱民（中国石化北京燕山分公司,研究院,北京102500）　

参考文献：

[1]Kamienski C W,Merkley J H.Preparation of polymers and telomers using complexes of organomagnesiums with certain hydrides as catalysts:US,3691241[P].1972-09-12.
[2]Kamienski C W,Merkley J H.Preparation of polymers using complexes of organomagnesiums with certain hydrides as catalysts:US,3817955[P].1974-06-18.
[3]Strouf O,Casensky B,Kubanek V.Journal of Organometallic Chemistry Library[M].Elsevier,1985:1.
[4]Ziegler K,Kǒster R,Lehmkuhl H,et al.Metallorganische Verbindungen,xxx Neue komplexverbindungen der Aluminiumalkyle[J].Justus Liebigs Annalen der Chemie,1960,629(1):33-49.
[5]Brown H C,Schlesinger H I,Sheft I,et al.Addition compounds of alkali metal hydrides,sodium trimethoxyborohydride and related compounds[J].J Am Chem Soc,1953,75(1):192-195.
[6]Brown C A.The rapid quantitative reaction of potassium hydride with weak Lewis acids:A highly convenient new route to hindered complex borohydrides[J].J Am Chem Soc,1973,95(12):4100-4102.
[7]З axapkинЛИ,Гавpцленко B B.Komилексы aлюминийтриалкиловидиалкилалюминийгидридовсалкиламищелочныхметалловиихгидридами[J].ЖурналОъщийХимин,1962,32(3):689-692.
[8]Menoret S,Deffieux A,Desbois P.Initiation of retarded styrene anionic polymerization using complexes of lithium hydride with organometallic compounds[J].Macromolecules,2003(36):5988-5994.
[9]Carlotti S,Menoret S,Desbois P,et al.Sodium Hydride/trialkylaluminum complexes for controlled anionic polymerization of styrene at high temperature[J].Macromol Rapid Commun,2006(27):905-909.
[10]Carlotti S,Menoret S,Barabonova A,et al.Sodium hydride as a new initiator for the retarded anionic polymerization (RAP) of styrene[J].Polymer,2007(48):4322-4327.
[11]Desbois P,Fontanille M,Deffieux A,et al.Towards the control of the reactivity in high temperature anionic polymerization of styrene:Retarded anionic polymerization 3-influence of triisobutylaluminam on the reactivity of polystyryllithium species[J].Macromol Symp,2000,157:151-160.
[12]Carlotti S,Menoret S,Barabonova A,et al.Effect of aluminum derivatives in the retarded styrene anionic polymerization[J].Polymer,2005,46(18):6836-6843.
[13]Arest-Yakuborich A A.Role of bimetallic active centres in anionic polymerization of hydrocarbon monomers[J].Macromol Symp,1994,85:279-294.

收稿日期：2009年12月28日

修稿日期：2010年9月1日

出版日期：2010年11月15日