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Functional Macromolecules Constructed from Triple-Bond Building Blocks
Development of new methodologies for the construction of functional polymers with novel
structures and unique properties is of fundamental importance in polymer science. Our research
group has been actively working on the development of new alkyne polymerization routes towards
functional macromolecules. In this talk, I will discuss our recent work on the exploration of new alkyne polymerizatio...
http://www.polymer.cn/research/dis_info18615 |
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HYDROGEN BOND-MEDIATED SELF-ASSEMBLY STRUCTURES OF DIBLOCK COPOLYMER MIXTURES
Materials prepared on the nanoscale are usually obtained using “top down” and “bottom up” methods. The “top down” method is a traditional fabrication technique offering arbitrary geometrical designs and superior nanometer-level precision,&...
http://www.polymer.cn/research/dis_info16049 |
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MOLECULAR DESIGN OF POLYANILINE ANALOGUES BASED ON ORGANOMETALLIC CARBON-NITROGEN BOND FORMATION
Polyaniline is one of the most popular and potentially useful electrically conducting polymers due to its unique electrical and optical properties.
http://www.polymer.cn/research/dis_info11883 |
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Synthesis and properties of HDPE-g-MAH fibers
关键字：HDPE,MAH,grafting process,hydrogen bond
In the present work, maleic anhydride grafted high density polyethylene (HDPE-g-MAH) was synthesized in the way of free radical reaction. The graft polymer was spun into fibers by melting spinning at 260℃. The chemical structure,...
http://www.polymer.cn/research/dis_info11517 |
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Functional Macromolecules Constructed from Triple-Bond Building Blocks
关键字：polyenes, polyarylenes, polyynes
While most conventional addition polymer are prepated bu chain polymerizations of vinyl monomers, we launched a reaserch project on the syntheses of new conjugative polymers emloying acetylenic molecules as monomers. Functional acetylene mo...
http://www.polymer.cn/research/dis_info2022 |
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Rich C-H bond activations of yttrium alkyl complexes bearing phosphinimino-amine ligands
A series of phosphinimino-amine compounds (2,6–iPr2–C6H3NH)C(Me)CHPPh2(NAr) (Ar = 2,6–iPr2–C6H3 (HL1), 2,6–Et2–C6H3 (HL2), 2,6–Me2–C6H3 (HL3), C6H5 (HL4), 3–CF3–C6H4 (HL5)) that existed in imine and amine forms were synthesized and fully characterized. Treatment of HL1?5 with Y(CH2SiMe3)3(THF)2 afforded the corresponding yttrium mono- or bis...
http://www.polymer.cnt//ss/dongmeicui/publicationsshow_11999.html |
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Intramolecular C-H bond activation induced by a scandium terminal imido complex
A CpPN-based scandium terminal imido complex was isolated, which could induce the intramolecular C-H bond activation of a phenyl group even at room temperature.
http://www.polymer.cnt//ss/dongmeicui/publicationsshow_11889.html |
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The ligand effect on the selective C–H versus C–C bond activationof propane by NiBr+: a theoretical study.
Density functional theory has been employed to investigate the ligand effect in the reaction of ligated NiBr+ with propane. Both initial C–H and C–C bond activation mechanisms for losses of HBr, H2, and CH4 are analyzed in terms of the topology of the potential energy surface. Losses of HBr and H2 involve three C–H activation mechanisms, that is, α,β-H, α,γ-H, andβ,α-H abstractions, whe...
http://www.polymer.cnt//ss/luxiaoqing/publicationsshow_10211.html |
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Decomposition mechanism of methylamine to hydrogen cyanide on Pt(111): Selectivity of the C–H, N–H and C–N bond scissions.
Periodic density functional theory (DFT) calculations were performed to systematically investigate the decomposition mechanism of methylamine (CH3NH2) to hydrogen cyanide (HCN) on Pt(111). The geometries and energies for all species involved are analyzed, and the decomposition network is mapped out to elaborate the reaction mechanism. Our results show that the CH3NH2, methanimine (CH2NH) and HCN...
http://www.polymer.cnt//ss/luxiaoqing/publicationsshow_10192.html |
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Heterogeneity, segmental and hydrogen bond dynamics, and aging of supramolecular self-healing rubber
In recent years, self-healing materials have attracted increasing attention due to their potentially spontaneous self-repairing ability after mechanical damage. Here, we focus on a supramolecular self-healing rubber based on fatty acids following the work of Leibler and co-workers. We study the heterogeneous network structure and hydrogen bond dynamics as well as its significant aging properties u...
http://www.polymer.cnt//ss/sunpingchuan/publicationsshow_5168.html |
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