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Spatial inhomogeneities of polystrene gels prepared from semidilute solutions
The spatial inhomogeneity and the chain dynamics of polystyrene gels prepared by random cross-linking of functionalized polystyrene in semidilute toluene solution were investigated by static and dynamic light scattering. From polymer concentrations as low as 0.02 g/mL, continuous macroscopic gels were obtained, while at 0.01 g/mL, only microgels formed. In the concentration range 0.02-0.05 g/mL, t...
http://www.polymer.cn//ss/rgliu/publicationsshow_2957.html |
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97. Phase transition and rheological behaviors of concentrated cellulose/ionic liquid solutions
暂无。
http://www.polymer.cn//ss/zhigangwang/publicationsshow_2594.html |
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Effect of hydrophobic association on structure and rheological behavior of polyacrylamide aqueous solutions [J].
SUN Huan-zhang, ZHANG K. L. Zhang Qun-ling, CHEN Jing. ZENG Shen-wen, PING Zhen-hua, XU Yuan-ze. Effect of hydrophobic association on structure and rheological behavior of polyacrylamide aqueous solutions [J]. Acta Polymerica Sinica, 2006, 9(6): 810-814.
http://www.polymer.cn//ss/xuyuanze/publicationsshow_2070.html |
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Multi-scale rheological perspective to polymer solutions and gels in EOR[J].
CAO Xu-long, LI Zheng-quan, ZHANG Qun-ling,WANG Gang, XU Yuan-ze. Multi-scale rheological perspective to polymer solutions and gels in EOR[J]. J Cent South Univ Technol, 2007, 14(suppl.): 232-237.
http://www.polymer.cn//ss/xuyuanze/publicationsshow_2069.html |
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Electrospun ultra-fine silk fibroin fibers from aqueous solutions
By using electrospinning technique, beaded, cylinder shaped and ribbon like ultra-fine silk fibroin (SF) fibers were obtained from its concentrated aqueous solution under different processing conditions. These fibers had an average diameter of 700 nm and were characterized by scanning electron microscopy (SEM), Wide-angle X-ray diffraction (WAXD) and Raman spectroscopy. It was found that the...
http://www.polymer.cn//ss/yaopengzhang/publicationsshow_1731.html |
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Influence of polymerization on the cholesteric structure in ethyl-cyanoethyl cellulose/acrylic acid solutions
Ethyl-cyanoethyl cellulose ((E-CE)C) forms cholesteric liquid crystals in acrylic acid (AA) and the cholesteric order in the solutions can be frozen when the AA is quickly polymerized but the cholesteric structure is changed after the polymerization though the property of the selective reflection is reserved. The maximum wavelength of the selective reflection of the cholesteric phase lambda(max) i...
http://www.polymer.cn//ss/Zhouxuesong/publicationsshow_739.html |
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(JACS)Rare Earth Metal-Mediated Group-Transfer Polymerization: From Defined Polymer Microstructures to High-Precision Nano-Scaled Objects
关键字：Rare Earth Metal, Group-Transfer Polymerization, 2-isopropenyl-2-oxazoline, 2-vinylpyridine
Poly(2-isopropenyl-2-oxazoline) (PIPOx) and poly(2-vinylpyridine) (P2VP) have been efficiently synthesized using bis(cyclopentadienyl)methylytterbium (Cp2YbMe) as catalyst. The polymerizations of 2-isopropenyl-2-oxazoline (IPOx) and 2-vinylpyridine (2VP) follow a living group-transfer polymerization (GTP) mechanism, allowing a precise molecular-weight control of both polymers with very narrow mole...
http://www.polymer.cn/research/sy_info15103 |
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Synthesis of poly (tert-butyl methacrylate) macromonomer with one vinyl end group per polymer chain
关键字：Synthesis,poly,tert,butyl,methacrylate,macromonomer,one,vinyl,end,group,per,polymer,chain,
Poly( tert-butyl methacrylate) (PtBMA) macromonomer with one vinyl end group per polymer chain was synthesized by chain transfer free radical polymerization in the presence of 2-mercaptethanol as chain transfer agent and end capping re...
http://www.polymer.cn/research/dis_info5967 |
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SYNTHESIS OF POLY(PHTHALAZINONE ETHER KETONE KETONE)CONTAINING SODIUM SULFONATE GROUP VIA DIRECTPOLYMERIZATION
关键字：SYNTHESIS,POLY,PHTHALAZINONE,ETHER,KETONE,KETONE,CONTAINING,SODIUM,SULFONATE,GROUP,VIA,DIRECTPOLYMERIZATION,
Poly(aryl ether ketone)s are a category of high performance engineering plastics which have outstanding thermal, physical and mechanical properties.
http://www.polymer.cn/research/dis_info1817 |
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ETHYLENE POLYMERIZATION CATALYZED BY α-；DIIMINE NICKEL(II)COMPLEXES CONTAINING UNSYM-SUBSTITUTED ARYL GROUP IN THE PRESENCE OF MAO
关键字：ETHYLENE,POLYMERIZATION,CATALYZED,amp,61485,DIIMINE,NICKEL,COMPLEXES,CONTAINING,UNSYM,SUBSTITUTED,ARYL,GROUP,THE,PRESENCE,MAO,
In this work, a series of unsym-substituted α-diimine nickel (II) complexes of general formula [{(ArN=C(X)C(X)=NAr)}NiBr2] (see Fig. 1) were synthesized and activated by methylaluminoxane (MAO) for ethylene polymerization
http://www.polymer.cn/research/dis_info1692 |
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