Synthesis and characterization of hyperbranched poly(ester-amide)s from commercially available dicarboxylic acids and multihydroxyl primary amines
文献类型：期刊论文
| 作者 | Li, Xiuru; Lu, Xianfeng; Lin, Ying; Zhan, Jie; Li, Yuesheng; Liu, Zhiqiang; Chen, Xuesi; Liu, Shuying |
| 刊名 | MACROMOLECULES
 |
| 出版日期 | 2006-11-14 |
| 卷号 | 39期号:23页码:7889-7899 |
| ISSN号 | 0024-9297 |
| DOI | 10.1021/ma060950q |
| 英文摘要 | A new method for syntheses of hyperbranched poly(ester-amide)s from commercially available A(2) and CBx type monomers has been developed on the basis of a series of model reactions. The aliphatic and semiaromatic hyperbranched poly(ester-amide)s with multihydroxyl end groups are prepared by in situ thermal polycondensation of intermediates obtained from dicarboxylic acids (A(2)) and multihydroxyl primary amines (CBx) in N,N-dimethylformamide. Analyses of FTIR, H-1 NMR, and C-13 NMR spectra revealed the structures of the polymers obtained. The MALDI-TOF MS of the polymers indicated that cyclization side reactions occurred during polymerization. The hyperbranched poly(ester-amide) s contain configurational isomers observed by C-13 and DEPT C-13 NMR spectroscopy. The DBs of the polymers were determined to be 0.38-0.62 by H-1 NMR or quantitive C-13 NMR and DEPT 135 spectra. These polymers exhibit moderate molecular weights, with broad distributions determined by size exclusion chromatography ( SEC), and possess excellent solubility in a variety of solvents such as N, N- dimethylacetamide, dimethyl sulfoxide, tetrahydrofuran, and ethanol, and display glass-transition temperatures (T(g)s) between -2.3 and 53.2 degrees C, determined by DSC measurements. The thermogravimetric analytic measurement revealed that the decomposition temperature of the polymers at 10% weight-loss temperature (T-d(10)) ranged from 333 to 397 degrees C in nitrogen. |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000241813200019 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/58629]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li, Yuesheng |
| 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, Changchun Inst Appl Chem, Ctr Mass Spectrometry, Changchun 130022, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100864, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xiuru,Lu, Xianfeng,Lin, Ying,et al. Synthesis and characterization of hyperbranched poly(ester-amide)s from commercially available dicarboxylic acids and multihydroxyl primary amines[J]. MACROMOLECULES,2006,39(23):7889-7899. |
| APA | Li, Xiuru.,Lu, Xianfeng.,Lin, Ying.,Zhan, Jie.,Li, Yuesheng.,...&Liu, Shuying.(2006).Synthesis and characterization of hyperbranched poly(ester-amide)s from commercially available dicarboxylic acids and multihydroxyl primary amines.MACROMOLECULES,39(23),7889-7899. |
| MLA | Li, Xiuru,et al."Synthesis and characterization of hyperbranched poly(ester-amide)s from commercially available dicarboxylic acids and multihydroxyl primary amines".MACROMOLECULES 39.23(2006):7889-7899. |
入库方式： OAI收割
来源：化学研究所
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