| 高反式1,4-聚异戊二烯合成的新方法 |
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| 引用本文： | 黄宝琛,贺继东,徐玲,唐学明. 高反式1,4-聚异戊二烯合成的新方法[J]. 高分子学报, 1992, 0(1): 116-119 |
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| 作者姓名： | 黄宝琛 贺继东 徐玲 唐学明 |
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| 作者单位： | 青岛化工学院高分子材料系，青岛化工学院高分子材料系，青岛化工学院高分子材料系，青岛化工学院高分子材料系 青岛，邮政编码:266042，青岛，邮政编码:266042，青岛，邮政编码:266042，青岛，邮政编码:266042 |
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| 摘 要： | <正> 反1,4-链节含量接近100％的聚异戊二烯(TPI)具有天然杜仲胶或古塔胶的结构和性能,结晶熔点60—65℃,被认为是作为形状记忆功能材料,如医用矫形材料、各种温敏变形材料的最理想聚合物。关于TPI的合成路线,国外报道主要有V体系(VCl_3/AlEt_3及其负载改性型)和V-Ti混合体系(VCl_3/β-TiCl_3/AlEt_3和Ti(OR)_4/
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| 关 键 词： | 反1,4-聚异戊二烯 负载型钛催化剂 配位聚合 |
| 收稿时间： | 1991-03-20 |
A NEW METHOD OF SYNTHESES OF HIGH TRANS-1,4- POLYISOPRENE |
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| HUANG Bao-chen,HE Ji-dong,XU Ling,TANG Xue-ming. A NEW METHOD OF SYNTHESES OF HIGH TRANS-1,4- POLYISOPRENE[J]. Acta Polymerica Sinica, 1992, 0(1): 116-119 |
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| Authors: | HUANG Bao-chen HE Ji-dong XU Ling TANG Xue-ming |
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| Affiliation: | Qingdao Institute of Chemical Technology; Qingdao; Post code: 266042 |
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| Abstract: | A kind of high trans-1,4-polyisoprene (TPI) was synthesized by coordinative polymerization of isoprene with supported titanium catalyst and triisobutylaluminium. The experimental results illustrated that the catalytic efficiency (CE) increases when the monomer concentration, polymerization temperature and time are increased. Under suitable conditions the CE can-exceed 2000 gTPI/gTi and the inherent viscocity of the TPI is about 4-6dl/g. The micro-structure of the synthesized TPI was characterized by IR and 13C-NMR spectra It was verified that the microstructure of the TPI is nearly all trans-1,4 chain unit(above 99%). Its melting temperature is about 60℃ by DSC method. |
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| Keywords: | Trans-1 4-polyisoprene Supported titanium catalyst Coordinative polymerization |
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