Isothermal crystallization of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)
文献类型：期刊论文
| 作者 | Peng SW ; An YX ; Chen C ; Fei B ; Zhuang YG ; Dong LS |
| 刊名 | european polymer journal
 |
| 出版日期 | 2003 |
| 卷号 | 39期号:7页码:1475-1480 |
| 关键词 | DIFFERENTIAL SCANNING CALORIMETRY BACTERIAL POLY(BETA-HYDROXYBUTYRATE-CO-BETA-HYDROXYVALERATE) SPHERULITIC CRYSTALLIZATION POLYETHYLENE FRACTIONS POLYMER CRYSTALS MOLECULAR WEIGHT BLENDS MORPHOLOGY COPOLYMERS GROWTH |
| ISSN号 | 0014-3057 |
| 通讯作者 | dong ls |
| 中文摘要 | isothermal crystallization behavior of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (phbv) was investigated by means of differential scanning calorimetry and polarized optical microscopy (pom). the avrami analysis can be used successfully to describe the isothermal crystallization kinetics of phbv, which indicates that the avrami exponent n = 3 is good for all the temperatures investigated. the spherulitic growth rate, g, was determined by pom. the result shows that the g has a maximum value at about 353 k. using the equilibrium melting temperature (448 k) determined by the flory equation for melting point depression together with u-* = 1500 cal mol(-1), t-infinity = 30 k and t-g = 278 k, the nucleation parameter k-g was determined, which was found to be 3.14+/-0.07 x 10(5) (k-2), lower than that for pure phb. the surface-free energy sigma = 2.55 x 10(-2) j m(-2) and sigma(e) = 2.70+/-0.06 x 10-2 j m(-2) were estimated and the work of chain-folding (q = 12.5+/-0.2 kj mol(-1)) was derived from sigma(e), and found to be lower than that for phb. this implies that the chains of phbv are more flexible than that of phb. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000183680900022 |
| 公开日期 | 2010-09-13 |
| 源URL | [http://202.98.16.49/handle/322003/17219]  |
| 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 | Peng SW,An YX,Chen C,et al. Isothermal crystallization of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)[J]. european polymer journal,2003,39(7):1475-1480. |
| APA | Peng SW,An YX,Chen C,Fei B,Zhuang YG,&Dong LS.(2003).Isothermal crystallization of poly(3-hydroxybutyrate-co-3-hydroxyvalerate).european polymer journal,39(7),1475-1480. |
| MLA | Peng SW,et al."Isothermal crystallization of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)".european polymer journal 39.7(2003):1475-1480. |
入库方式： OAI收割
来源：长春应用化学研究所
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