| RING-OPENING POLYMERIZATION OF ε-CAPROLACTONE BY LANTHANOCENE CATALYSIS* |
| |
| 引用本文： | 孙俊全,潘智达,杨士林. RING-OPENING POLYMERIZATION OF ε-CAPROLACTONE BY LANTHANOCENE CATALYSIS*[J]. 高分子科学, 1998, 0(4): 297-303 |
| |
| 作者姓名： | 孙俊全 潘智达 杨士林 |
| |
| 作者单位： | Department of Chemical Engineering，Zhejiang University，Hangzhou 310027，China，Department of Polymer Science and Engineering，Zhejiang University，Hangzhou，310027，China，Department of Polymer Science and Engineering，Zhejiang University，Hangzhou，310027，China，Laboratory of Rare-Earth Chemistry and Physics，Changchun Institute of Applied Chemistry，Chinese Academy of Sciences Changchun 130022，China |
| |
| 摘 要： | Ring-opening polymerization of ε-caprolactone (CL) catalyzed bylanthanocenes, O(C_2H_4C_5H_3CH_3)_2YCl (Cat-YCl) and Me_2Si[(CH_3)_3SiC_5H_3]_2NdCl(Cat-NdCl) has been carried out for the first time. It has been found that both yttroceneand neodymocene are very efficient to catalyze the polymerization of CL, giving high molec-ular weight poly (ε-caprolactone) (PCL ). The effects of [cat] / [ε- CL] molar ratio, polymeriza-tion temperature and time, as well as solvents were investigated and polymerization tem-perature is found to be the most important factor affecting the polymerization. The bulkpolymerization gives higher molecular weight PCL and higher conversion than that in solu-tion polymerization. NaBPh_4 was found to promote the polymerization of ε-caprolactone,and thus to increase both the polymerization conversion and MW of poly (ε- caprolactone ).
|
| 关 键 词： | Ring-opening polymerization ε-Caprolactone Lanthanocene catalyst Rare-earth catalysts Biodegradable material |
| 收稿时间： | 1997-03-05 |
RING-OPENING POLYMERIZATION OF ε-CAPROLACTONE BY LANTHANOCENE CATALYSIS* |
| |
| SUN Junquan,PAN Zhida,YANG Shilin. RING-OPENING POLYMERIZATION OF ε-CAPROLACTONE BY LANTHANOCENE CATALYSIS*[J]. Chinese Journal of Polymer Science, 1998, 0(4): 297-303 |
| |
| Authors: | SUN Junquan PAN Zhida YANG Shilin |
| |
| Affiliation: | Department of Chemical Engineering; Zhejiang University; Hangzhou 310027; China Depariment of Polymer Science and Engineering; Hangzhou; 310027; China Laboratory of Rare-Earth Chemistry and Physics; Changchun Institute of Applied Chemistry; Chinese Academ |
| |
| Abstract: | Ring-opening polymerization of ε-caprolactone (CL) catalyzed bylanthanocenes, O(C2H4C5H3CH3)22YCl (Cat-YCl) and Me2Si[(CH3)3SiC5H3]2NdCl(Cat-NdCl) has been carried out for the first time. It has been found that both yttroceneand neodymocene are very efficient to catalyze the polymerization of CL, giving high molec-ular weight poly (ε-caprolactone) (PCL ). The effects of [cat] / [ε- CL] molar ratio, polymeriza-tion temperature and time, as well as solvents were investigated and polymerization temperature is found to be the most important factor affecting the polymerization.The bulk polymerization gives higher molecular weight PCL and higher conversion than that in solution polymerization.NaBPh4 was found to promote the polymerization of ε-caprolactone,and thus yo increase both the polymerization conversion and MW of poly(ε-caprolactone). |
| |
| Keywords: | Ring-opening polymerization ε-Caprolactone Lanthanocene catalyst Rare-earth catalysts Biodegradable material |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《高分子科学》浏览原始摘要信息 |
|
点击此处可从《高分子科学》下载全文 |
