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您现在的位置:欢乐时时彩 > 资料 > metal-free 的搜索结果 共有结果22,当前从第1条到第10条,本次搜索耗时0
 
Synthesis of Nylon 3 by Ring Opening Polymerization with a Metal-free Catalyst
Nylon 3 or polyamide 3 with a -amino acid skeleton, which is different from other commercial nylons in the amide linkages, usually exhibits interesting properties such as high capacity of moisture up-take, high glass trans...
http://www.stageastar.com/research/dis_info16131
 
Synthesis of Nylon 3 by Ring Opening Polymerization with a Metal-free Catalyst
Nylon 3 or polyamide 3 with a -amino acid skeleton, which is different from other commercial nylons in the amide linkages, usually exhibits interesting properties such as high capacity of moisture up-take, high glass trans...
http://www.stageastar.com/research/dis_info16131
 
26. Photoinduced Metal-Free Atom Transfer Radical Polymerization of Biomass-Based Monomers
Well-defined polymers derived from biomass feedstock (e.g., soybean oil, rosin acid, and furfural) were successfully prepared by metal-free atom transfer radical polymerization (ATRP). In the presence of photoredox catalysts and UV irradiation, three biomass-based methacrylate monomers were efficiently polymerized with good control over molecular weight and dispersi...
http://www.stageastar.comt//ss/wangzhongkai/publicationsshow_9721.html
 
196. Nitrogen-Doped Graphene Nanoribbons as Efficient Metal-Free Electrocatalysts for Oxygen Reduction.
Nitrogen-doped graphene nanoribbon (NGNR) nanomaterials with different nitrogen contents have been facilely prepared via high temperature pyrolysis of graphene nanoribbons (GNR)/polyaniline (PANI) composites. Here, the GNRs with excellent surface integration were prepared by longitudinally unzipping the multiwalled carbon nanotubes. With a high length-to-width ratio, the GNR sheets are prone to fo...
http://www.stageastar.comt//ss/liutianxi/publicationsshow_6875.html
 
Highly Active Organic Lewis Pairs for the Copolymerization of Epoxides with Cyclic Anhydrides: Metal-Free Access to Well-Defined Aliphatic Polyesters
关键字:Epoxides with Cyclic Anhydrides,Metal-Free,
Polyester synthesis from the alternating copolymerization of epoxides with cyclic anhydrides via a metal-free route remains a key challenge. This work reports the development of a highly active organocatalytic route for the copolymerization of a spectrum of epoxides and cyclic anhydrides. Fully alternating polyesters were synthesized by a variety of organic Lewis acid?base pairs including organo...
http://www.stageastar.com/research/sy_info19594
 
Highly Active Organic Lewis Pairs for the Copolymerization of Epoxides with Cyclic Anhydrides: Metal-Free Access to Well-Defined Aliphatic Polyesters
关键字:Epoxides with Cyclic Anhydrides,Metal-Free,
Polyester synthesis from the alternating copolymerization of epoxides with cyclic anhydrides via a metal-free route remains a key challenge. This work reports the development of a highly active organocatalytic route for the copolymerization of a spectrum of epoxides and cyclic anhydrides. Fully alternating polyesters were synthesized by a variety of organic Lewis acid?base pairs including organo...
http://www.stageastar.com/research/sy_info19594
 
Highly Active Organic Lewis Pairs for the Copolymerization of Epoxides with Cyclic Anhydrides: Metal-Free Access to Well-Defined Aliphatic Polyesters
Polyester synthesis from the alternating copolymerization of epoxides with cyclic anhydrides via a metal-free route remains a key challenge. This work reports the development of a highly active organocatalytic route for the copolymerization of a spectrum of epoxides and cyclic anhydrides. Fully alternating polyesters were synthesized by a variety of organic Lewis acid?base pairs including organo...
http://www.stageastar.comt//ss/xhzhang/publicationsshow_14185.html
 
Metal-Free Route to Precise Synthesis of Poly(propylene oxide) and Its Blocks with High Activity
The fast and living ring-opening polymerization (ROP) of propylene oxide (PO) by metal-free catalysis is reported. By using triethyl borane (TEB) and organic Lewis bases (LBs, e.g.: phosphazene base, amidine and guanidine) as the catalysts, various alkyl alcohols can effectively initiate the ROP of PO, yielding tailor-made poly(propylene oxide)s (PPOs) with high regioregularity, predictable mole...
http://www.stageastar.comt//ss/xhzhang/publicationsshow_14175.html
 
【Journal Of Materials Chemistry A】A Review On Noble-Metal-Free Bifunctional Heterogeneous Catalysts For Overall Electrochemical Water Splitting
Production of hydrogen by water splitting is an appealing solution for sustainable energy storage. Development of bifunctional catalysts that are active for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) is a key factor in enhancing electrochemical water splitting activity and simplifying the overall system design. Here, recent developments in HER–OER bifunct...
http://www.stageastar.comt//ss/zhaobin/publicationsshow_13723.html
 
[J.Phys.Chem.C ]Highly Efficient Electromagnetic Wave Absorbing Metal-Free and Carbon-Rich Ceramics Derived from Hyperbranched Polycarbosilazanes
Abstract: The highly efficient electromagnetic (EM) wave absorbing metal-free and carbon-rich ceramics derived from hyperbranched polycarbosilazanes were presented in this contribution. The novel metal-free hyperbranched polycarbosilazanes with pendant cyano groups (hb-PCSZ-cyano) were synthesized through aminolysis reaction and subsequent Michael addition reaction, i.e. cyanoethylation reaction...
http://www.stageastar.comt//ss/kongjie/publicationsshow_12267.html
 
 
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