Thermal analysis of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) irradiated under vacuum
文献类型：期刊论文
| 作者 | Yang HL ; Liu JJ |
| 刊名 | polymer international
 |
| 出版日期 | 2004 |
| 卷号 | 53期号:11页码:1677-1681 |
| 关键词 | CO-60 GAMMA-RADIATION POLYHYDROXYALKANOATES ELASTOMERS PLASTICS BLENDS |
| ISSN号 | 0959-8103 |
| 通讯作者 | liu jj |
| 中文摘要 | poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (phbv) was irradiated by co-60 gamma-rays (doses of 50, 100 and 200kgy) under vacuum. the thermal analysis of control and irradiated phbv, under vacuum was carried out by thermogravimetric analysis (tga) and differential scanning calorimetry (dsc). the tensile properties of control and irradiated phbv were examined by using an instron tensile testing machine. in the thermal degradation of control and irradiated phbv, a one-step weight loss was observed. the derivative thermogravimetric curves of control and irradiated phbv confirmed only one weight-loss step change. the onset degradation temperature (t-o) and the temperature of maximum weight-loss rate (t-p) of control and irradiated phbv were in line with the heating rate (degreesc min(-1)). t-o and t-p of phbv decreased with increasing radiation dose at the same heating rate. the dsc results showed that co-60 gamma-radiation significantly affected the thermal properties of phbv. with increasing radiation dose, the melting temperature (t-m) of phbv shifted to a lower value, due to the decrease in crystal size. the tensile strength and fracture strain of the irradiated phbv decreased, hence indicating an increased brittleness. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000224607700012 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/15281]  |
| 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 | Yang HL,Liu JJ. Thermal analysis of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) irradiated under vacuum[J]. polymer international,2004,53(11):1677-1681. |
| APA | Yang HL,&Liu JJ.(2004).Thermal analysis of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) irradiated under vacuum.polymer international,53(11),1677-1681. |
| MLA | Yang HL,et al."Thermal analysis of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) irradiated under vacuum".polymer international 53.11(2004):1677-1681. |
入库方式： OAI收割
来源：长春应用化学研究所
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