Dependence of Melt Behavior of Star Polystyrene/POSS Composites on the Molecular Weight of Arm Chains
文献类型：期刊论文
| 作者 | Tan, Haiying1,2; Zheng, Jun1,2; Xu, Donghua1; Wan, Dong1; Qiu, Jian1; Tang, Tao1 |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY B
 |
| 出版日期 | 2014-05-15 |
| 卷号 | 118期号:19页码:5229-5239 |
| ISSN号 | 1520-6106 |
| DOI | 10.1021/jp502946d |
| 英文摘要 | Rheological behavior of three-arm and six-arm star polystyrene (SPS) with a small amount of polyhedral oligosilsesquioxane (POSS) was studied. Both linear oscillatory frequency sweep and steady state shear results of SPS/POSS composites showed the reduction of melt viscosity in the unentangled SPS matrix and the increase of viscosity in the entangled SPS matrix. In particular, when molecular weight of the arm (M-a) of SPS was smaller than the critical molecular weight for entanglement (Me) of PS, the melt viscosity of SPS/POSS composites with low content of POSS was lower than that of pure SPS. The abnormal phenomenon of reduced melt viscosity in SPS/POSS composites was in coincidence with the melt viscosity behavior of SPS/C-60 composites reported in our previous work (Soft Matter 2013, 9, 6282-6290), although the diameters of two nanoparticles and their interaction with SPS matrix were different. A possible mechanism behind the melt viscosity behavior was discussed. Furthermore, the time-temperature superposition principle (TTS) was applied in SPS and SPS/POSS composites. The Cox Merz empirical relationship was verified to be valid for SPS/POSS composites when the content of PUSS was low (1 wt %). |
| 语种 | 英语 |
| WOS记录号 | WOS:000336199100027 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/51819]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Tang, Tao |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tan, Haiying,Zheng, Jun,Xu, Donghua,et al. Dependence of Melt Behavior of Star Polystyrene/POSS Composites on the Molecular Weight of Arm Chains[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2014,118(19):5229-5239. |
| APA | Tan, Haiying,Zheng, Jun,Xu, Donghua,Wan, Dong,Qiu, Jian,&Tang, Tao.(2014).Dependence of Melt Behavior of Star Polystyrene/POSS Composites on the Molecular Weight of Arm Chains.JOURNAL OF PHYSICAL CHEMISTRY B,118(19),5229-5239. |
| MLA | Tan, Haiying,et al."Dependence of Melt Behavior of Star Polystyrene/POSS Composites on the Molecular Weight of Arm Chains".JOURNAL OF PHYSICAL CHEMISTRY B 118.19(2014):5229-5239. |
入库方式： OAI收割
来源：化学研究所
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