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Journal of Materials Chemistry 2011: One-pot preparation of polyethylenimine-silica nanoparticles as serum-resistant gene delivery vectors: Intracellular trafficking and transfection
Organic-inorganic hybrid silica nanoparticles (PM-1, PM-2 and PM-3) with positive surface charge and size below 200 nm were one-pot prepared via Michael addition between 3-methacryloxypropyl-trimethoxysilane (MPTMS) and polyethylenimine (PEI), followed by hydrolysis and polycondensation of siloxanes. The nanoparticles were characterized by FT-IR, element analysis and particle size analysis. The av...
http://www.polymer.cn//ss/huangshiwen/publicationsshow_3463.html |
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138. Dramatically Enhanced Mechanical Performance of Nylon-6 Magnetic Composites with Nanostructured Hybrid One-Dimensional Carbon Nanotubes – Two-Dimensional Clay Nanoplatelet Heterostructures
Mechanically robust, magnetic nylon-6 nanocomposites reinforced by one-dimensional (1D) carbon nanotube (CNT)−two-dimensional (2D) clay nanoplatelet hybrids have been prepared using a simple melt-compounding technique. The direct iron-catalyzed chemical vapor deposition (CVD) growth of multiwalled CNTs utilizes iron oxide-immobilized clay nanoplatelets as substrates, carrying out in situ int...
http://www.polymer.cn//ss/liutianxi/publicationsshow_2945.html |
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One-Pot Synthesis of Hyperbranched Polyethylenes Tethered with Methacryloyl Groups via Selective Ethylene Copolymerization with Heterobifunctional Comonomers by Chain Walking Pd-diimine Catalysis
One-Pot Synthesis of Hyperbranched Polyethylenes Tethered with Methacryloyl Groups via Selective Ethylene Copolymerization with Heterobifunctional Comonomers by Chain Walking Pd-diimine Catalysis
http://www.polymer.cn//ss/wangjianli/publicationsshow_1898.html |
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北京春达科技提供彩色宽幅型蛋白质标准Protein Ladder One
北京春达科技有限公司，位于北京市中关村科技园石景山园区，拥有一支具有多年营销管理经验的精英团队。专业经营实验室和工业生产纯化介质，精细化工产品及设备和耗材，产品广泛应用于生命科学基础研究、生物工程、检验检疫、天然产物、食品卫生、环境、新材料等领域。公司主要从事以下产品的进口和部分产品的出口。
公司产品：
1、生命科学产品，包括基因科学、蛋白质科学，药物开发和工业生产。从基因到药物，我们的产品和技术...
http://www.polymer.cn/trading/springup2103/companydetail |
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北京春达科技提供蛋白电泳染色液CBB Stain One（即用型）
北京春达科技有限公司，位于北京市中关村科技园石景山园区，拥有一支具有多年营销管理经验的精英团队。专业经营实验室和工业生产纯化介质，精细化工产品及设备和耗材，产品广泛应用于生命科学基础研究、生物工程、检验检疫、天然产物、食品卫生、环境、新材料等领域。公司主要从事以下产品的进口和部分产品的出口。
公司产品：
1、生命科学产品，包括基因科学、蛋白质科学，药物开发和工业生产。从基因到药物，我们的产品和技术...
http://www.polymer.cn/trading/springup2103/companydetail |
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Highly Efficient One-Pot Synthesis of COS-Based Block Copolymers by Using Organic Lewis Pairs
关键字：metal-free Lewis pairs，poly(monothiocarbonate) block copolymer，carbonyl sulfide，immortal polymerization
A one-pot synthesis of block copolymer with regioregular poly(monothiocarbonate) block
is described via metal-free catalysis. Lewis bases such as guanidine, quaternary onium salts,
and Lewis acid triethyl borane (TEB) were equivalently combined and used as the catalysts. By using polyethylene glycol (PEG) as the macromolecular chain transfer agent (CTA), narrow polydispersity block copolym...
http://www.polymer.cn/research/sy_info19590 |
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Synthesis of monodisperse, large scale and high solid content latexes of poly(n-butyl acrylate) by a one-step batch emulsion polymerization
关键字：Emulsion polymerization Large particle size High solid content
Seeded emulsion polymerization and agglomerating method were well-known techniques for the production of polymeric latexes with large particle size and high solid content.
Obtaining latexes with monodisperse and particle size above 300 nm scale, however, was time-consuming and difficult by means of these methods. Here, stable, monodisperse
latexes with the controlled particle diameter (55–650 nm)...
http://www.polymer.cn/research/sy_info17413 |
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A New Low-Bandgap Polymer Containing Benzene-Fused Quinoxaline: Significantly Enhanced Performance Caused by One Additional Benzene Ring
关键字：benzene-fused quinoxaline; low-bandgap; polymer solar cells
Two new alkoxy-substituted quinoxaline (Qx)-based copolymers, PBDTQx and PBDTPz, are
designed and synthesized. The only difference between these two polymers is that two methyl groups of the Qx are replaced by one additional fused benzene ring. The UV–Vis absorptions, thermal stability, energy levels, fi eld-effect carrier mobility, and photovoltaic characteristics of the two copolymers are sys...
http://www.polymer.cn/research/sy_info17335 |
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“one-pot"法制备葡萄糖敏感纳米凝胶用于胰岛素自调式控制释放
以聚乙二醇二丙烯酸酯( PEGDA)、聚乙二醇单甲醚丙烯酸酯(PEGA)、丙烯酰胺基苯硼酸(AAPBA)和四（3一巯基丙酸）季戊四醇酯(QT)为原料，采用“硫醇一烯”点击反应的“one-pot”方法制备了葡萄糖敏感的纳米凝胶。通过动态光散射测试纳米凝胶在不同葡萄糖浓度溶液中的流体动力学半径，实验结果表明，该纳米凝胶具有良好的葡萄糖敏感性能。载药纳米凝胶的体外胰岛素释放实验进一步证实了该纳米凝胶的葡萄糖...
http://www.polymer.cn/research/sy_info15405 |
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One-Step Synthesis of a Thienylenepyridazinylenethienylene-based Coil-Rod-Coil Copolymer with Enhanced Emission and Improved Fluorescence Stability
关键字：aggregation锛宐lock copolymers锛宑onjugated polymers锛宖luorescence锛宱ligomers
A new coil-rod-coil copolymer is synthesized via Sonogashira coupling using one-step methodology. The copolymer PEG-OEPETPT-PEG constitutes of poly(ethylene glycol) (PEG) as the coil block, and oligo[p-(ethynylenephenyleneethynylene)-alt-(thienylenepyridazinylenethienylene)] (OEPETPT) as the rod segment. The conjugated polymer PEPETPT with the same conjugated building blocks is also synthesized fo...
http://www.polymer.cn/research/sy_info15297 |
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