| RHEOLOGICAL BEHAVIOR OF POLYMER MELTS (Ⅰ)UNIFIED MOLECULAR THEORY OF NON-LINEAR ISCOELASTICITY WITH CONSTRAINTS OF GAUSSIAN CHAIN ENTANGLEMENT FOR POLYMER MELTS |
| |
| 引用本文： | 宋名实
,吴丝竹.RHEOLOGICAL BEHAVIOR OF POLYMER MELTS (Ⅰ)UNIFIED MOLECULAR THEORY OF NON-LINEAR ISCOELASTICITY WITH CONSTRAINTS OF GAUSSIAN CHAIN ENTANGLEMENT FOR POLYMER MELTS[J].中国化学工程学报,1996(1). |
| |
| 作者姓名： | 宋名实 吴丝竹 |
| |
| 作者单位： | Song Mingshi Wu Sizhu
Department of Polymer Science and Engineering，Beijing University of Chemical Technology，Beijing 100029，China To whom correspondence should be addressed. |
| |
| 基金项目： | This work was supported by the National Natural Science Education Committee Foundation of China and the National Natural Science Foundation of China |
| |
| 摘 要： | An approach with statistical mechanics and a unified molecular theory of non-linearviscoelasticity with constraints of Gaussian chain entanglement for polymer melts were proposed.Amultimode model structure for a single polymer chain with tail segments and N reversibleentanglement sites on the test polymer chain was developed.The probability distribution function ofthe end-to-end vector for a single polymer chain at entangled state and the viscoelastic free energyof deformation for polymer melts were calculated.Four types of stress-strain relationship and mem-ory function were derived from this theory.The above theoretical relationships were verified by experi-mental data of PS(polystyrene)and LDPE(low density polyethylene)melts.
|
| 本文献已被 CNKI 等数据库收录！ |
