Low-molecular weight aliphatic amides as nucleating agents for poly (L-lactic acid): Conformation variation induced crystallization enhancement
文献类型：期刊论文
| 作者 | Xing, Qian1; Zhang, Xiuqin2; Dong, Xia1; Liu, Guoming1; Wang, Dujin1 |
| 刊名 | POLYMER
 |
| 出版日期 | 2012-05-09 |
| 卷号 | 53期号:11页码:2306-2314 |
| 关键词 | Poly (L-lactic Acid) Aliphatic Amide Nucleating Efficiency |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2012.03.034 |
| 英文摘要 | Two kinds of low molecular weight aliphatic amides, N, N'-ethylenebis (12-hydroxystearamide) (EBH) and N, N'-ethylenebisstearamide (EBSA), have been selected in present study to mediate the crystallization behavior of poly (L-lactic acid) (PLLA). The results showed that the crystallization rate of PLLA was significantly improved with the addition of EBH and EBSA, and EBH presented a stronger nucleating efficiency. The correlation between the variation of chain conformation during the early stages of isothermal crystallization and the enhancement of crystallization rate for pure PLLA and its mixtures was investigated by time-resolved FTIR. The formation of interchain conformational-ordered structure and intrachain 10(3) helix structure for amide-doped PLLA preceded that for pure PLLA, suggesting a stimulatory nucleating effect of EBH and EBSA. In the case of PLLA/EBH, the interchain interactions of -(COC + CH3) and -CH3 groups were faster than the -(CH3+CC) intrachain interactions, while the interchain interactions and the intrachain 10(3) helix formation were nearly synchronous for PLLA/EBSA. The hydrogen bond interaction between hydroxyl groups in EBH and the carbonyl groups in PLLA was proposed to be an important factor influencing the conformation variation during isothermal crystallization of PLLA. (C) 2012 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000304630200023 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/47975]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Dujin |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 2.Beijing Inst Fash Technol, Dept Mat Sci & Engn, Beijing Key Lab Clothing Mat R&D Assessment, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xing, Qian,Zhang, Xiuqin,Dong, Xia,et al. Low-molecular weight aliphatic amides as nucleating agents for poly (L-lactic acid): Conformation variation induced crystallization enhancement[J]. POLYMER,2012,53(11):2306-2314. |
| APA | Xing, Qian,Zhang, Xiuqin,Dong, Xia,Liu, Guoming,&Wang, Dujin.(2012).Low-molecular weight aliphatic amides as nucleating agents for poly (L-lactic acid): Conformation variation induced crystallization enhancement.POLYMER,53(11),2306-2314. |
| MLA | Xing, Qian,et al."Low-molecular weight aliphatic amides as nucleating agents for poly (L-lactic acid): Conformation variation induced crystallization enhancement".POLYMER 53.11(2012):2306-2314. |
入库方式： OAI收割
来源：化学研究所
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