| 聚醋酸乙烯酯/聚丙烯酸甲酯互穿网络聚合物的研究——4.橡胶态模量和网络间的互穿缠结 |
| |
| 引用本文： | 毕喜平,李滨耀,张东华.聚醋酸乙烯酯/聚丙烯酸甲酯互穿网络聚合物的研究——4.橡胶态模量和网络间的互穿缠结[J].高分子学报,1989(4). |
| |
| 作者姓名： | 毕喜平 李滨耀 张东华 |
| |
| 作者单位： | 中国科学院长春应用化学研究所 长春
(毕喜平，李滨耀)，中国科学院长春应用化学研究所 长春(张东华) |
| |
| 摘 要： | 用动态粘弹谱仪测定了分步法互穿网络聚合物,聚醋酸乙烯酯/聚丙烯酸甲酯(PVAc/PMA-IPN)的橡胶态模量。实验值与从方程E_R=φ_Ⅰ~1/3·E_(R,Ⅰ)~0+φ_(Ⅱ)E_(R,Ⅱ)~0所得理论值的比较,表明网络问有明显的互穿缠结,网络Ⅰ交联程度对其的影响大于网络Ⅱ。并结合实验结果对Binder-Frisch理论中,ΔS_(ent)∝N_(c,Ⅰ)~(-1)·N_(c,Ⅱ)~(-1/2)关系的合理性进行了讨论。
|
| 关 键 词： | 互穿网络聚合物 聚醋酸乙烯酯 聚丙烯酸甲酯 緾结 |
STUDY OF POLY (VINYL ACETATE)/POLY (METHYL ACRYLATE) INTERPENETRATING POLYMER NETWORKS 4. Rubbery Modulus and Mutual Entanglements Between the Networks |
| |
| BI Xiping,LI Binyao and ZHANG Donghua.STUDY OF POLY (VINYL ACETATE)/POLY (METHYL ACRYLATE) INTERPENETRATING POLYMER NETWORKS 4. Rubbery Modulus and Mutual Entanglements Between the Networks[J].Acta Polymerica Sinica,1989(4). |
| |
| Authors: | BI Xiping LI Binyao and ZHANG Donghua |
| |
| Abstract: | Rubbery modulus of poly (vinyl acetate)/poly (methyl acrylate interpenetrating polymer networks (PVAc/PMA-IPNs) are determined in dynamic mechanical experim-ents, and calculated according to eq. ER = . Their comparison shows that mutual entanglements obviously exist in PVAc/PMA-IPNs, and that network I dominates the properties related. A discussion is made about the entropy change due to mutual entanglements using Binder'Frisch relationship, . |
| |
| Keywords: | Interpenetrating polymer networks Polyvinyl acetate Polymethyl acrylate Entangylement |
| 本文献已被 CNKI 等数据库收录！ |
