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Structural characteristics and interfacial relaxation of nanocomposites based on polystyrene and modified layered double hydroxides

文献类型：期刊论文

作者Li, Xiaohai1,2; Chen, Lin1,2; Li, Qiulong1,2; Zhang, Jinjin1,2; Zhang, Xian1,2; Zheng, Kang1,2; Tian, Xingyou1,2
刊名COLLOID AND POLYMER SCIENCE
出版日期2016-05-01
卷号294期号:5页码:815-822
关键词Relaxation Structure Molecular Dynamics Ps/o-ldh Nanocomposites
DOI10.1007/s00396-016-3834-6
文献子类Article
英文摘要Nanocomposites based on polystyrene (PS) and organically modified MgAl-layered double hydroxides (O-LDHs) were prepared via in situ free radical polymerization. The modification of LDH by sodium dodecylbenzenesulfonate (SDBS) led to a nearly complete substitution of original NO3 (-) in LDH intergallery and an enlarged interlayer distance. The structural changes of LDH layers before and after preparation of nanocomposite samples were well investigated, and the corresponding mechanism diagram was proposed to visually describe the results. X-ray diffraction (XRD) and transmission electron microscopy (TEM) showed that O-LDH was homogeneously distributed in the PS matrix as stacks with an intercalated structure. The tan delta spectra of nanocomposites revealed that there were two kinds of relaxation in PS/O-LDH nanocomposites. The second of relatively low intensity located at the temperature is higher than the main relaxation (glass transition of PS matrix), corresponding to motions of the PS chains confined by O-LDH particle surfaces. According to the stack structure and dispersion behavior of O-LDH layers in the PS matrix, a three-layer model was introduced to explain the two relaxations in PS/O-LDH nanocomposites.
WOS关键词STRUCTURE-PROPERTY RELATIONSHIPS ; GLASS-TRANSITION BEHAVIOR ; POLYMERS ; LDH ; POLYMERIZATION ; DYNAMICS ; RUBBER ; SCALE ; SIZE
WOS研究方向Chemistry ; Polymer Science
语种英语
WOS记录号WOS:000373954000002
资助机构National Natural Science Foundation of China(21204090 ; National Natural Science Foundation of China(21204090 ; National Natural Science Foundation of China(21204090 ; National Natural Science Foundation of China(21204090 ; 51303182) ; 51303182) ; 51303182) ; 51303182) ; National Natural Science Foundation of China(21204090 ; National Natural Science Foundation of China(21204090 ; National Natural Science Foundation of China(21204090 ; National Natural Science Foundation of China(21204090 ; 51303182) ; 51303182) ; 51303182) ; 51303182)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/22363]  
专题合肥物质科学研究院_应用技术研究所
作者单位1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Appl Technol, Hefei 230031, Peoples R China
2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Li, Xiaohai,Chen, Lin,Li, Qiulong,et al. Structural characteristics and interfacial relaxation of nanocomposites based on polystyrene and modified layered double hydroxides[J]. COLLOID AND POLYMER SCIENCE,2016,294(5):815-822.
APA Li, Xiaohai.,Chen, Lin.,Li, Qiulong.,Zhang, Jinjin.,Zhang, Xian.,...&Tian, Xingyou.(2016).Structural characteristics and interfacial relaxation of nanocomposites based on polystyrene and modified layered double hydroxides.COLLOID AND POLYMER SCIENCE,294(5),815-822.
MLA Li, Xiaohai,et al."Structural characteristics and interfacial relaxation of nanocomposites based on polystyrene and modified layered double hydroxides".COLLOID AND POLYMER SCIENCE 294.5(2016):815-822.

入库方式： OAI收割

来源：合肥物质科学研究院

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