Insight into the role of bound water of a nucleating agent in polymer nucleation: a comparative study of anhydrous and monohydrated orotic acid on crystallization of poly(L-lactic acid)
文献类型：期刊论文
| 作者 | Song, Ping1; Sang, Lin2; Zheng, Liuchun3; Wang, Chao1; Liu, Kankan4; Wei, Zhiyong5 |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2017 |
| 卷号 | 7期号:44页码:27150-27161 |
| 英文摘要 | To gain an insight into the role of bound water of a nucleating agent in polymer nucleation, a biobased nucleating agent, orotic acid (OA), was selected as a model to investigate the effects on crystallization of poly(L-lactic acid) (PLLA). In such a context, two commercially available types of OA in anhydrous (OA-a) and monohydrated (OA-m) forms were melt mixed with PLLA, and their nucleation effectiveness on nonisothermal and isothermal melt crystallization of PLLA was comparatively studied. Results indicate that both forms of OA can significantly improve nonisothermal crystallization temperature and degree of crystallinity, overall isothermal crystallization rate, as well as nucleation density of PLLA. Interestingly, OA-a shows more prominent nucleation efficiency than OA-m. That is, the bound water of OA-m and its dehydration transition play a negative role in nucleation effects on PLLA crystallization. It is attributed to the deteriorated dispersion and the reduced active concentration of dehydration-transformed OA-a in PLLA/OA-m blends, as compared with pristine OA-a in PLLA/OA-a blends. Furthermore, an epitaxial mechanism is proposed to explain the nucleation phenomenon of PLLA/OA blends. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38550]  |
| 专题 | 化学研究所_工程塑料实验室 |
| 作者单位 | 1.North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Peoples R China 2.Dalian Univ Technol, Sch Automot Engn, Dalian 116024, Peoples R China 3.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Engn Plast, Beijing 100190, Peoples R China 4.North Univ China, Sch Chem & Environm Engn, Taiyuan 030051, Peoples R China 5.Dalian Univ Technol, Sch Chem Engn, Dalian 116024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Ping,Sang, Lin,Zheng, Liuchun,et al. Insight into the role of bound water of a nucleating agent in polymer nucleation: a comparative study of anhydrous and monohydrated orotic acid on crystallization of poly(L-lactic acid)[J]. RSC ADVANCES,2017,7(44):27150-27161. |
| APA | Song, Ping,Sang, Lin,Zheng, Liuchun,Wang, Chao,Liu, Kankan,&Wei, Zhiyong.(2017).Insight into the role of bound water of a nucleating agent in polymer nucleation: a comparative study of anhydrous and monohydrated orotic acid on crystallization of poly(L-lactic acid).RSC ADVANCES,7(44),27150-27161. |
| MLA | Song, Ping,et al."Insight into the role of bound water of a nucleating agent in polymer nucleation: a comparative study of anhydrous and monohydrated orotic acid on crystallization of poly(L-lactic acid)".RSC ADVANCES 7.44(2017):27150-27161. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。