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Preparation of Monodisperse Crosslinked Polymer Microspheres Having Chloromethyl Group by Distillation-precipitation Polymerization
Monodisperse crosslinked poly(chloromethylstyrene-co-divinylbenzene) (poly(CMSt-co-DVB)) microspheres were prepared by distillation-precipitation copolymerization of chloromethylstyrene (CMSt) and divinylbenzene (DVB) in neat acetonitrile. The polymer particles had clean surfaces due to the absence of any added stabilizer. The size of the particles ranges from 2.59 μm to 3.19 μm and with mono-di...
http://www.polymer.cn//ss/yangxinlin/publicationsshow_6584.html |
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Preparation of Narrow- or Monodisperse Polymer Microspheres with Active Hydroxyl Group by Distillation-precipitation Polymerization
Narrow-dispersion or monodisperse polymer microspheres with active hydroxyl groups were prepared by distillation–precipitation polymerization in the absence of any stabilizer. The monomer hydroxyethyl methacrylate (HEMA) was copolymerized with either commercial divinylbenzene (DVB) (containing 80 % of DVB isomers) or ethyleneglycol dimethacrylate (EGDMA) as crosslinker by distillation–precipitat...
http://www.polymer.cn//ss/yangxinlin/publicationsshow_6562.html |
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Synthesis of Core-shell Microspheres with Active Hydroxyl Group by Two-stage Precipitation Polymerization
Monodisperse micrometer microspheres having active hydroxyl groups with a dense core and a lightly crosslinked functional shell were prepared by two-stage precipitation polymerization in the absence of any stabilizer. Commercial divinylbenzene (DVB), containing 80 % of DVB was polymerized by precipitation in acetonitrile without any stabilizer as the first stage polymerization and used as the core...
http://www.polymer.cn//ss/yangxinlin/publicationsshow_6561.html |
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Size-controlled Gold Nanocolloids on Polymer Microsphere-stabilizer via Interaction Between Functional Group and Gold Atoms
Gold nanocolloids with the controlled diameter ranging from 5.2 to 10.7 nm were in situ prepared by reduction of gold chloride trihydrate with sodium borohydride as reductant via the interaction between the gold naocolloids and the functional groups on the surface of polymer microspherestabilizer. The nature of such interaction was studied in detail by X-ray photoelectron spectroscopy (XPS). The e...
http://www.polymer.cn//ss/yangxinlin/publicationsshow_6547.html |
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A Controlled Morphology of Polymeric Nanocapsules via the Density of Surface Vinyl Group for the Precipitation Polymerization
The morphology of the resultant poly(ethyleneglycol dimethacrylate-co-methacrylic acid)/polydivinylbenzene (P(EGDMA-co-MAA)/PDVB) nanocapsules for in situ precipitation polymerization of divinylbenzene in presence of P(EGDMA-co-MAA) nanocapsules as templates was controlled by the density of the residual surface vinyl group of the P(EGDMA-co-MAA) nanocapsules, which was dependent on the cross-linki...
http://www.polymer.cn//ss/yangxinlin/publicationsshow_6538.html |
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Monodisperse Hydrophilic Polymer Microspheres Having Carboxyl Acid Group by Distillation Precipitation-polymerization
Monodisperse hydrophilic polymer microspheres having carboxyl acid group with spherical shape in the range of 160 nm and 1.52 um were prepared by distillation copolymerizations of (meth)acrylic acid with either ethyleneglycol dimethacrylate (EGDMA) or divinylbenzene (DVB) as crosslinker. Polymerization was carried out with 2,20-azobisisobutyronitrile (AIBN) as initiator in neat acetonitrile withou...
http://www.polymer.cn//ss/yangxinlin/publicationsshow_6525.html |
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Studies on curing kinetics of a novel combined liquid crystalline epoxy containing tetramethylbiphenyl and aromatic ester-type mesogenic group with diaminodiphenylsulfone
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http://www.polymer.cn//ss/caizhiqi/publicationsshow_5456.html |
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The effect of anchoring group number on molecular structures and absorption spectra of triphenylamine sensitizers: a computational study
The molecular structures and absorption spectra of triphenylamine dyes containing different numbers of anchoring groups (S1-S3) were investigated by density functional theory (DFT) and time-dependent DFT. The calculated geometries indicate that strong conjugation is
formed in the dyes. The interfacial charge transfer between the TiO2 electrode and S1-S3 are electron injection processes from the ex...
http://www.polymer.cn//ss/xujie/publicationsshow_5329.html |
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Alternating Copolymerization of Carbon Dioxide and Propylene Oxide by Single-Component Cobalt Salen Complexes with Various Axial group
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http://www.polymer.cn//ss/BinyuanLiu/publicationsshow_4920.html |
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A new and efficient synthetic method of a liquid crystalline epoxy resin with biphenol and aromatic ester group
This article describes a high efficient and economical method to synthesize a liquid crystalline epoxy resin (LCER) containing biphenol and aromatic ester group, 3,3',5,5'-tetramethylbiphenyl-4,4'-diyl bis(4-(oxiran-2-ylmethoxy) benzoate) (4). First, 3,3',5,5'-tetramethylbiphenyl-4,4'-diyl bis(4-hydroxybenzoate) (3) was prepared by direct esterification of 3,3',5,5'-tetramethylbiphenyl-4,4'-diol (...
http://www.polymer.cn//ss/caizhiqi/publicationsshow_4174.html |
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