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Hemiphasmidic Side-Chain Liquid Crystalline Polymer: From Smectic C Phase to Columnar Phase with a Bundle of Chains as Its Building Block
关键字：Liquid Crystalline Polymer, Smectic, Columnar Phase C Phase,
We synthesized a new hemiphasmidic side-chain liquid crystalline polymer (P-n, n is the number of carbons in alky tail of the side chain, n = 4?12) using free radical polymerization. The side chain of P-n has a biphenyl in the middle, linked to the polystyrene backbone and to the terminal phenyl group with three alkyl tails via only methyleneoxy units. Upon increasing n,...
http://www.polymer.cn/research/sy_info16329 |
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Influence from Thermal Elimination Temperature of Precursor Polymer and Film-forming Methods on the Photophysics of the Poly（2,5-didodecyloxy-p-phenylenevinylene）
关键字：poly（p-phenylenevinylene），synthetic methods，photophysics，polymer precursor，morphology
A series of poly（p-phenylenevinylene）s （PPVs） with good solubility were synthesized from thermal elimination of precursor poly（2,5-didodecyloxy-p-phenylenevinylene） at different temperature via Wessling method. The polymer photophysics were influenced by the thermal elimination condition, which was consistent with NMR and IR characterizations. The additional absorption peak at longer wavelen...
http://www.polymer.cn/research/sy_info15318 |
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Influence from Thermal Elimination Temperature of Precursor Polymer and Film-forming Methods on the Photophysics of the Poly（2,5-didodecyloxy-p-phenylenevinylene）
关键字：poly（p-phenylenevinylene），synthetic methods，photophysics，polymer precursor，morphology
A series of poly（p-phenylenevinylene）s （PPVs） with good solubility were synthesized from thermal elimination of precursor poly（2,5-didodecyloxy-p-phenylenevinylene） at different temperature via Wessling method. The polymer photophysics were influenced by the thermal elimination condition, which was consistent with NMR and IR characterizations. The additional absorption peak at longer wavelen...
http://www.polymer.cn/research/sy_info15314 |
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Thermoplastics Reinforced by Self-welded Glass Fibers Effect of Interfacial Affinity on Preferential Segregation
关键字： Fiber-polymer interaction, Fiber-reinforced polymer composites, Interfacial shear strength
The aim of this study is to clarify the effect of relative interfacial affinity on theformation of glass fiber-polyamide 6 (GF-PA6) networks in different polymer matrices. The fiber-polymer interaction was estimated by the...
http://www.polymer.cn/research/sy_info15162 |
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Journal of Polymer Science Part A: Polymer Chemistry 2012, 50(3), 571
关键字：controlled ring-opening polymerization (CROP); reversible addition-fragmentation chain transfer (RAFT); "living"/controllable polymerization; star block copolymer;
Reversible addition-fragmentation chain transfer (RAFT) polymerization is a more robust and versatile approach than other living free radical polymerization methods for synthesis of well-defined homo-, gradient, block, star-shaped and more complex structural polymers, like micro(nano)gels and polymer brushes. Thus the resultant polymers with thiocarbonylthio-terminated groups are readily tailored ...
http://www.polymer.cn/research/sy_info14683 |
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The Influence of POSS on Photopolymerization Shrinkage , Photoreaction Behaviour of Polymer Kinetics and Photo-rheology Dispersed Liquid Crystals
关键字： Polymer dispersed liquid crystals, Polyhedral oligomeric silsesquioxane, Volume shrinkage , Photopolymerization , Photo-rheology
Polymer dispersed liquid crystals (PDLCs) have been investigated intensively because of their interesting properties and potential applications in display and electro-optical devicescl].When prepared PDLCs by photopolymerization induc...
http://www.polymer.cn/research/dis_info17352 |
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Molecular Dynamics Simulation of Interfacial Dynamics and Micro-structural Evolution under Tension of Polymer Nanocomposites
关键字：non-equilibrium molecular dynamics, payne effect, "polymer shell"
By building a polymer nanocomposite (PNC) system, a detailed coarse-grained molecular dynamics simulation is adopted to investigate the change trend of the modulus and the micro-structural evolution under uniaxial tension. The ...
http://www.polymer.cn/research/dis_info17338 |
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Fire-retarding Intrinsic Solid Polymer Electrolytes Based on Multi-armed Oligo( ethylene oxide)
关键字：solid polymer electrolyte,lonic conductivity, multi-armed oligo(ethylene oxide)
Solid polymer electrolytes ( SPEs) based on poly ( ethylene oxide) (PEO) are considered promising candidates for secondary lithium batteries. However, the low ionic conductivity caused by the crystallinityo...
http://www.polymer.cn/research/dis_info17332 |
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Numerical modeling and experimental analyzing polypropylene polymer air drawing in the melt blowing nonwoven process
关键字：melt blowing; nonwoven; polymer; processing parameters; air drawing model; fiber diameter
The air drawing model of a polymer in a melt blowing process is established and solved by introducing the numerical computation results of the air jet flow field of the dual slot die. The influence of the melt ...
http://www.polymer.cn/research/dis_info14100 |
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Investigation of pH responsive nanogels with semi-interpenetrating polymer network structure
关键字：nanogels; Semi-interpenetrating polymer network (semi-IPN); pH responsiveness; poly(acrylic acid);poly(N-isopropylacrylamide)
The nanogels with semi-interpenetrating polymer network (semi-IPN) structure based on cross-linked poly(N-isopropylacrylamide) (PNIPAM) and linear poly(acrylic acid) (PAA) were fabricated by one-step precipitation polymerization technique. The chemical composition&...
http://www.polymer.cn/research/dis_info14019 |
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