Crystallization Behavior of Asymmetric PLLA/PDLA Blends
文献类型：期刊论文
| 作者 | Sun JR ; Yu HY ; Zhuang XL ; Chen XS ; Jing XB |
| 刊名 | journal of physical chemistry b
 |
| 出版日期 | 2011 |
| 卷号 | 115期号:12页码:2864-2869 |
| 关键词 | ENANTIOMERIC POLY(LACTIC ACID)S STEREOCOMPLEX FORMATION POLY(L-LACTIC ACID) POLY(L-LACTIDE)/POLY(D-LACTIDE) STEREOCOMPLEX POLYLACTIDE STEREOCOMPLEX POLY(D-LACTIC ACID) SPHERULITE GROWTH CRYSTAL-STRUCTURE THERMAL-PROPERTY MELT |
| ISSN号 | 1520-6106 |
| 通讯作者 | chen xs |
| 中文摘要 | the effects of the addition of poly(d-lactide) (pdla) on the crystallization behavior of poly(l-lactide) (plla) were investigated by means of differential scanning calorimetry (dsc) and temperature-dependent x-ray diffraction(xrd). when the blends were cooled from different temperatures (250, 240, and 190 degrees c) at the rate of cooling of 5 degrees c/min, stereocomplex (sc) crystallites could stay at diverse states. accordingly, the stereocomplexes acted as a nucleation agent exerting distinct effects on plla crystallization. the speculated mechanisms of the stereocomplex formation and the effectiveness as a nucleating agent are schematically described. moreover, temperature-dependent xrd was carried out to further :investigate the melt-crystallization behavior of plla/pdla blends in real time. temperature-dependent xrd results indicated that even at 240 degrees c the stereocomplex crystallites in all blend samples. existed clearly, which could not be detected by dsc. these xrd results further suggest that the onset t(c) values for the plla alpha-form crystals formation were 160, 120, 140, and 160 degrees c, respectively, for neat plla, plla/pdla 95/5, 90/10, and 80/20 as well as 70/30 samples. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000288644700022 |
| 公开日期 | 2012-06-11 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/44747]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Sun JR,Yu HY,Zhuang XL,et al. Crystallization Behavior of Asymmetric PLLA/PDLA Blends[J]. journal of physical chemistry b,2011,115(12):2864-2869. |
| APA | Sun JR,Yu HY,Zhuang XL,Chen XS,&Jing XB.(2011).Crystallization Behavior of Asymmetric PLLA/PDLA Blends.journal of physical chemistry b,115(12),2864-2869. |
| MLA | Sun JR,et al."Crystallization Behavior of Asymmetric PLLA/PDLA Blends".journal of physical chemistry b 115.12(2011):2864-2869. |
入库方式： OAI收割
来源：长春应用化学研究所
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