Synthesis of novel hyperbranched poly(ester-amide)s based on neutral alpha-amino acids via "ad plus cbb '" couple-monomer approach
文献类型：期刊论文
| 作者 | Bao, You-Mei1,2; Liu, Xiao-Hui1; Tang, Xiu-Lan3; Li, Yue-Sheng1,3 |
| 刊名 | Journal of polymer science part a-polymer chemistry
 |
| 出版日期 | 2010-12-01 |
| 卷号 | 48期号:23页码:5364-5374 |
| ISSN号 | 0887-624X |
| 关键词 | "ad plus cbb '" Amino acid Biocompatibility Hyperbranched Poly(ester-amide)s Polyesters Step-growth polymerization Strategy Thiol-ene chemistry |
| DOI | 10.1002/pola.24340 |
| 通讯作者 | Li, yue-sheng(ysli@ciac.jl.cn) |
| 英文摘要 | A series of novel hyperbranched poly(ester-amide)s (hbpeas) based on neutral a-amino acids have been synthesized via the "ad + cbb'" couple-monomer approach. the abb' intermediates were stoichiometrically formed through thio-michael addition reaction because of reactivity differences between functional groups. without any purification, in situ self-polycondensations of the intermediates at elevated temperature in the presence of a catalyst afforded hbpeas with multihydroxyl end groups. the degrees of branching (dbs) of the hbpeas were estimated to be 0.40-0.58 and 0.24-0.54 by quantitative (13)c nmr with two different calculation methods, respectively, depending on polymerization conditions and structure of monomers. the influences of catalyst, temperature, and intermediate structure on the polymerization process and molecular weights as well as properties of the resultant polymers were investigated. ftir, nmr, and dept-135 nmr analyses revealed the branched structure of the resultant polymers. the hbpeas possess moderately high molecular weights with broad distributions, glass transition temperatures in the range of -25.5 to 36.5 degrees c, and decomposition temperatures at 10% weight loss under nitrogen and air in the regions of 243.4-289.1 degrees c and 231.4-265.6 degrees c, respectively. among them, those derived from d, l-phenylalanine display the lowest degree of branching, whereas the highest glass transition temperature and the best thermal stability. (c) 2010 wiley periodicals, inc. j polym sci part a: polym chem 48: 5364-5374, 2010 |
| WOS关键词 | BB'(2) TYPE MONOMERS ; THERMAL POLYMERIZATION ; CLICK CHEMISTRY ; L-LYSINE ; DIVINYL SULFONE ; L-ALANINE ; POLYMERS ; AMIDE)S ; POLYESTERS ; DEGRADATION |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| 出版者 | WILEY-BLACKWELL |
| WOS记录号 | WOS:000284225500012 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2405477 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li, Yue-Sheng |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Changchun 130022, Peoples R China 3.Yanshan Univ, Coll Environm & Chem Engn, Qinhuangdao 066004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bao, You-Mei,Liu, Xiao-Hui,Tang, Xiu-Lan,et al. Synthesis of novel hyperbranched poly(ester-amide)s based on neutral alpha-amino acids via "ad plus cbb '" couple-monomer approach[J]. Journal of polymer science part a-polymer chemistry,2010,48(23):5364-5374. |
| APA | Bao, You-Mei,Liu, Xiao-Hui,Tang, Xiu-Lan,&Li, Yue-Sheng.(2010).Synthesis of novel hyperbranched poly(ester-amide)s based on neutral alpha-amino acids via "ad plus cbb '" couple-monomer approach.Journal of polymer science part a-polymer chemistry,48(23),5364-5374. |
| MLA | Bao, You-Mei,et al."Synthesis of novel hyperbranched poly(ester-amide)s based on neutral alpha-amino acids via "ad plus cbb '" couple-monomer approach".Journal of polymer science part a-polymer chemistry 48.23(2010):5364-5374. |
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来源：中国科学院大学
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