Dependence of Melt Behavior of Star Polystyrene/POSS Composites on the Molecular Weight of Arm Chains

	Dependence of Melt Behavior of Star Polystyrene/POSS Composites on the Molecular Weight of Arm Chains
	Tan, Haiying ; Zheng, Jun ; Xu, Donghua ; Wan,Dong ; Qiu,Jian ; Tang,Tao
刊名	journal of physical chemistry b
	2014
卷号	118 期号:19 页码:5229-5239
关键词	POLYHEDRAL OLIGOMERIC SILSESQUIOXANES POLYMER NANOCOMPOSITES MECHANICAL-PROPERTIES POLY(DIMETHYLSILOXANE)-POLYSILICATE NANOCOMPOSITES RHEOLOGICAL BEHAVIOR POSS NANOCOMPOSITES AQUEOUS DISPERSIONS PHASE-SEPARATION COPOLYMERS VISCOSITY
通讯作者	tang,t
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 %).
收录类别	SCI
语种	英语
公开日期	2015-10-27
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/57352]
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	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.