| β-二酮钛非茂催化剂催化降冰片烯聚合 |
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| 引用本文： | 宓霞,阎卫东,洪瀚,柯毓才,胡友良.β-二酮钛非茂催化剂催化降冰片烯聚合[J].高分子学报,2001,78(5):604-607. |
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| 作者姓名： | 宓霞 阎卫东 洪瀚 柯毓才 胡友良 |
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| 作者单位： | 1. 中国科学院化学研究所分子科学中心
2. 河北工业大学高分子科学与工程研究所 |
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| 基金项目： | 国家自然科学基金 (基金号 2 973414 1)，SINOPEC联合资助重点项目 |
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| 摘 要： | 用 (dibenzoylmethanato) 2 Ti(OPh) 2 (dbm) 2 Ti(OPh) 2 ]/甲基铝氧烷 (MAO)为代表的新型 β 二酮钛非茂催化剂实现了降冰片烯的聚合 ,得到加成聚合和开环易位聚合的混合物 ,研究了实现高聚合活性所需的特殊条件及所得的聚合物结构 ,主要应用傅立叶转变红外技术 (FTIR)对聚合物结构进行了表征和分析
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| 关 键 词： | β二酮钛 非茂催化剂 聚降冰片烯 |
| 修稿时间： | 2000年10月31 |
THE POLYMERIZATION OF NORBORNENE CATALYZED VIA (DIBENZOYLMETHANATO)2Ti (OPh)2/MAO |
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| MI Xia ,YAN Weidong ,HONG Han ,KE Yucai ,HU Youliang.THE POLYMERIZATION OF NORBORNENE CATALYZED VIA (DIBENZOYLMETHANATO)2Ti (OPh)2/MAO[J].Acta Polymerica Sinica,2001,78(5):604-607. |
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| Authors: | MI Xia YAN Weidong HONG Han KE Yucai HU Youliang |
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| Institution: | MI Xia 1,YAN Weidong 2,HONG Han 1,KE Yucai 1,HU Youliang 1 |
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| Abstract: | Norbornene polymerization was first carried out by (dienzoylmethanato) 2Ti (OPh) 2(dbm) 2Ti(OPh) 2]/methylaluminoxane (MAO),a type of β diketonate titanium non metallocene catalytic system.A mixture of vinyl addition polymer and ring opening metathesis polymer was obtained.Polymer structure was characterized by FTIR.Influence of polymerization temperature,Al/Ti mole ratio,monomer concentration and solvents on polymerization activity as well as on polymer structure was investigated.Higher activity was achieved at 80℃ with higher Al/Ti mole ratio and monomer concentration as well as 1,2 dichlorobenzene as the solvent instead of toluene.Higher temperature,higher Al/Ti mole ratio,lower monomer concentration have the advantage of forming more ring opening polymer structure and less addition polymer structure. |
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| Keywords: | Diketonate titanium Non metallocene catalysts Polynorbornene |
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