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Highly trans-1,4 selective (co-)polymerization ofbutadiene and isoprene with quinolyl anilido rare earth metal bis(alkyl) precursors
The N-R-quinolinyl-8-amino ligands HL1–3 (R
= 2,6-iPr2C6H3 (HL1),
2,6-Et2C6H3 (HL2), 2,6-Me2C6H3 (HL3))
have been prepared, which reacted readily with one equiv. of rare earth
metal tris(alkyl)s to afford the corresponding bis(alkyl) complexes L1Y(CH2SiMe3)2(THF)
(1) and L1–3Lu(CH2SiMe3)2(THF)
(2–4) viaalkane elimination. Contrastingly, treatm...
http://www.polymer.cnt//ss/dongmeicui/publicationsshow_12013.html |
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40. Tough and ultrastretchable hydrogels reinforced by poly(butyl acrylate-co-acrylonitrile) latex microspheres as crosslinking centers for hydrophobic association
In our previous work, poly(butyl acrylate) (PBA) latex microspheres (LMs) were embedded within hydrogels to enhance their mechanical strength. Herein, acrylonitrile (AN) components were added to the latex system to prepare novel poly(butyl acrylate-acrylonitrile) (P(BA-AN)) LMs. LMs were able to adsorb hydrophobic hexadecyl methacrylate (HMA) due to hydrophobic interactions, stabilized by...
http://www.polymer.cnt//ss/ghgao/publicationsshow_11929.html |
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21. Co-toughened Polystyrene by Submicrometer-Sized Core?Shell Rubber Particles and Micrometer-Sized Salami Rubber Particles
A series of submicrometer-sized polybutadiene (PB) rubber particles with different diameters ranging from 100 to 450 nm were prepared via an emulsion polymerization. Subsequently, core.shell polybutadiene-graf t-polystyrene (PB-g-PS) particles were synthesized using a redox initiator system (cumene hydroperoxide and ferrous sulfate) by an emulsion grafting polymerization...
http://www.polymer.cnt//ss/ghgao/publicationsshow_11902.html |
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CEJ-Positively charged nanofiltration membranes via economically mussel-substance-simulated co-deposition for textile wastewater treatment
Herein, a novel positively charged nanofiltration (NF) membrane has been facilely fabricated via a highly
efficient one-step mussel-substance-simulated co-deposition of low-cost catechol and branched
polyetheylenimine (PEI) onto substrates. The co-deposition behaviour, physicochemical properties and
separation performances of resultant membranes can be readily tailored by varying PEI mo...
http://www.polymer.cnt//ss/wangzhenxing/publicationsshow_11838.html |
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Crystallization and creep of the graphite nanosheets based poly(butylene adipate-co-terephthalate) biocomposites
Biodegradable poly(butylene adipate-co-terephthalate) (PBAT) composites containing graphite nanosheets were prepared by melt compounding. The results reveal that the nanosheets have full distribution throughout the PBAT matrix, although they are still dispersed as the multilayered stack. Those well distributed graphite nanosheets act as the heterogeneous nucleating agent to facilitate formation of...
http://www.polymer.cnt//ss/zhangming/publicationsshow_10546.html |
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Improvement of photocatalytic activity of high specific surface area graphitic carbon nitride by loading a co-catalyst
Graphitic carbon nitride (g-C3N4) was synthesized by heating melamine and was then treated with sodium hydroxide solution under a hydrothermal condition to obtain g-C3N4 with a large specific surface area (HSSA). HSSA shows higher photocatalytic activity for decomposition of acetaldehyde than that of original g-C3N4. HSSA was modified with RuO2 as a co-catalyst by the impregnation method...
http://www.polymer.cnt//ss/zhangming/publicationsshow_10545.html |
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Electrospun poly(3-hydroxybutyrate-co-3-hydroxy- valerate)/cellulose reinforced nanofibrous membranes with ZnO nanocrystals for antibacterial wound dressings
Electrospinning was used to fabricate bioactive nanofibrous membranes from cellulose nanocrystal-ZnO (CNC-ZnO) nanohybrids as reinforcing materials in biodegradable poly(3-hydroxybutyrate-co-3-hydroxy-valerate) (PHBV) for potential use as wound dressings. Incorporation of CNC-ZnO considerably improved the uniformity and reduced the diameter of PHBV nanofibers with porosity in the range of 14–56%....
http://www.polymer.cnt//ss/yuhouyong/publicationsshow_10520.html |
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Fully biodegradable food packaging materials based on functionalized cellulose nanocrystals/ poly(3-hydroxybutyrate-co-3-hydroxyvalerate) nanocomposites
Current packaging materials (mainly composed of petroleum-based synthetic polymers) face environmental and disposal issues, and as a result, developing eco-friendly and bio-based nanocomposites as alternatives have motivated academic and industrial research. We report here on our effort to develop a transparent nanocomposite-based packaging film comprised of poly(3-hydroxybutyrate-co-3-hydroxyvale...
http://www.polymer.cnt//ss/yuhouyong/publicationsshow_10510.html |
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Reinforcement of biodegradable poly(3- hydroxybutyrate-co-3-hydroxyvalerate) with cellulose nanocrystal/silver nanohybrids as bifunctional nanofillers?
Green nanocomposites containing biodegradable poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and cellulose nanocrystals/silver (CNC-Ag) nanohybrids were synthesized and their properties were investigated. It was found that homogeneously dispersed CNC-Ag could act as bifunctional reinforcements to improve the thermal, mechanical and antibacterial properties of PHBV. Compared to pristine PHBV, ...
http://www.polymer.cnt//ss/yuhouyong/publicationsshow_10504.html |
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Reinforcement of transparent poly(3-hydroxybutyrate-co-3- hydroxyvalerate) by incorporation of functionalized carbon nanotubes as a novel bionanocomposite for food packaging
Bionanocomposites of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) reinforced with PHBV-grafted multi-walled carbon nanotubes (PHBV-g-MWCNTs) were prepared through a simple solution casting method. The obtained nanocomposite films containing 1–10 wt.% PHBV-g-MWCNTs were transparent in the visible wavelength range. In addition, the PHBV-g-MWCNTs were uniformly dispersed throughout the PHBV m...
http://www.polymer.cnt//ss/yuhouyong/publicationsshow_10503.html |
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