Synthesis and characterization of an optical active triblock copolymer via atom transfer radical polymerization
文献类型：期刊论文
| 作者 | Feng Liang; Hu Jiwen; Xiao Dingshu; Zhao Fabao; Liu Zhilei |
| 刊名 | Acta polymerica sinica
 |
| 出版日期 | 2007-05-01 |
| 期号 | 5页码:413-421 |
| 关键词 | Atom transfer radical polymerization (atrp) Polysulfone L-leucine Optical active polymer |
| ISSN号 | 1000-3304 |
| 通讯作者 | Feng liang() |
| 英文摘要 | An optical active triblock copolymer poly(n-methacryloyl-l-leucine methyl ester)-b-polysulfone-b-poly(n-methaeryloyl-l-leucine methey ester) (pmalm-b-psf-b-pmalm) with predetermined structure and narrow molecular weight distribution was synthesized via atom transfer radical polymerization (atrp) using polysulfone macroinitiator and cubr/me6tren complex system. the structure was verified by h-1-nmr, gpc and end group titration techniques. dsc, thermogravimetry analysis (tga) and circular dichroism (cd) were used to study the thermal and optical properties. the mole ratio of pmalm block to psf block calculated from tga has a good agreement with the result calculated from h-1-nmr. both a reversion and an increase of the absolute value of specific rotation in the transformation from malm to pmalm-b-psf-b-pmalm were observed, which were probably caused by some kind of stereostructure of the main chain formed during the polymerization due to the intermolecular hydrogen-bonding. the random conformation of pmalm blocks was verified by cd spectra and the linear relationship between the specific rotation and the polarity of ch3 oh/ccl4 mixed solvent. |
| WOS关键词 | SIDE-CHAIN POLYMERS ; BLOCK-COPOLYMERS ; BEHAVIOR ; (METH)ACRYLAMIDES ; METHACRYLATE ; POLYOLEFINS ; TEMPERATURE ; ACRYLAMIDE ; MOIETIES ; ETHER |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000246990100003 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2380345 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Feng Liang |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Chem, Guangzhou 510650, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng Liang,Hu Jiwen,Xiao Dingshu,et al. Synthesis and characterization of an optical active triblock copolymer via atom transfer radical polymerization[J]. Acta polymerica sinica,2007(5):413-421. |
| APA | Feng Liang,Hu Jiwen,Xiao Dingshu,Zhao Fabao,&Liu Zhilei.(2007).Synthesis and characterization of an optical active triblock copolymer via atom transfer radical polymerization.Acta polymerica sinica(5),413-421. |
| MLA | Feng Liang,et al."Synthesis and characterization of an optical active triblock copolymer via atom transfer radical polymerization".Acta polymerica sinica .5(2007):413-421. |
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来源：中国科学院大学
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