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Journal of Polymer Science Part A: Polymer Chemistry 2012, 50(3), 571
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//ss/langmeidong/publicationsshow_4257.html |
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Journal of Polymer Science Part A: Polymer Chemistry 2011, 49, 5293
A series of copolymers containing ε-caprolactone (CL) and 4-methyl-ε-cap-rolactone (MeCL) were synthesized by ring-opening polymerization (ROP) using Tin(Ⅱ)bis(2-ethylhexanoate)(Sn(Oct)2) or Novozym 435 as catalyst. The molecular structure and weight of copolymers were determined by Nuclear Magnetic Resonance (NMR) and size exclusion chromatography (SEC), respectively. Our kinetic...
http://www.polymer.cn//ss/langmeidong/publicationsshow_4154.html |
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Journal of Polymer Science Part A: Polymer Chemistry 2011, 49(22), 4747
A mild and efficient strategy is presented for growing thermo-sensitive polymers directly from the surface of exfoliated graphene oxide (GO). This method involves the covalent attachment of Br-containing initiating groups onto the surface of GO sheets followed by in situ growing poly[poly(ethylene glycol) ethyl ether methacrylate] (PPEGEEMA) via single-electron- transfer living radical polymerizat...
http://www.polymer.cn//ss/langmeidong/publicationsshow_4150.html |
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Journal of Macromolecular Science, Part A: Pure and Applied Chemistry 2012 49, 124
Four-arm star block polymers consisting of hydrophobic poly(ε-caprolactone) (PCL) block and hydrophilic poly(2-(diethylamino) ethyl methacrylate)) (PDEAEMA) block were successfully synthesized by ring opening polymerization (ROP) and atom transfer radical polymerization (ATRP). Chain lengths of PDEAEMA segments were varied to obtain a series of star copolymers with different hydrophilic/hy...
http://www.polymer.cn//ss/langmeidong/publicationsshow_4140.html |
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Journal of Polymer Science Part A: Polymer Chemistry 2011 49, 1582-1590
Graphene nanosheets offer intriguing electronic, thermal and mechanical properties and are expected to find a variety of applications in high-performance nanocomposite materials. The great challenge of exfoliating and dispersing pristine graphite or graphene sheets in various solvents or matrices can be achieved by facilely and properly chemical functionalization of the carbon nanosheets. Here we ...
http://www.polymer.cn//ss/langmeidong/publicationsshow_2991.html |
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Journal of Macromolecular Science Part A: Pure and Applied Chemistry 2009, 46, 1103–1113
In this paper, 5-Fluorouracil (5-FU) loaded carboxylic poly(ε-caprolactone) nanoparticles have been prepared by emulsification/solvent evaporation o/w method, and the drug release behaviors of 5-FU were investigated. The novel carboxylic poly (ε-caprolactone) (P(CL-OPD)-mal) was synthesized via conjugation of maleic anhydride to sodium borohydride (NaBH4) reduced poly(ε-cap...
http://www.polymer.cn//ss/langmeidong/publicationsshow_1636.html |
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Journal of Polymer Science. Part A, Polymer Chemistry 2002, 40(8), 1127-1141
Hydroxyl-functionalized three-arm poly(_-caprolactone)s (PGCL-OHs) were synthesized by the ring-opening polymerization of _-caprolactone in the presence of glycerol (as the core) and stannous octoate. The effect of the feed ratio of _-caprolactone to glycerol on the ring-opening polymerization was studied. These three-arm PGCL-OHs were then converted into double-bond-functionalized three-arm poly(...
http://www.polymer.cn//ss/langmeidong/publicationsshow_1608.html |
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Nature社论：读博有害健康，三分之一博士生心理有问题
关键字：博士，心理问题
由于学术和经济的双重压力，许多博士生和博士后研究员处于极度劳累和精神极度紧张的状态，很容易产生心理问题。为了应对这一紧迫问题，全球首届研究生心理健康国际会议将于本周举办，推动这一问题的解决需要学术界、产业界和教育界多方共同努力。
本周，首届研究生心理健康国际会议将在英国布莱顿举行。这次会议为期两天，目标是解决一个简单而紧迫的问题：现在许多博士生和博士后研究人员处于过度劳...
http://www.polymer.cn/sci/kjxw15555.html |
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Nature官方推荐：十条让实验室更健康的简单规则！ to all PI & lab members
关键字：实验室，PI
本文授权转载自公众号：列文虎克网（ID：leewenhoke）
4月15日，nature简报头条推荐了Fernando T. Maestre教授“让实验室更快乐、更健康的十条简单规则”一文。该文是Maestre教授4月11日发表在Plos Computational Biology上题为的“Ten simple rules towards healthier research labs”文章。
PI，尤其是那些在各自领域已经确立了良好声誉的PI，是研究实验室的领导者和早期职业科学家...
http://www.polymer.cn/sci/kjxw15442.html |
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北化大尹梅贞教授《Nature Communications》：近红外MOF光热材料
关键字：MOF，近红外光，光热治疗
近红外光热材料通过抑制辐射跃迁将吸收的近红外光转化为热能。由于近红外光具有深层次的穿透能力及暗场成像能力，近红外光热转化效应被广泛应用于光热治疗等领域。传统的近红外吸收有机分子通常需要复杂的化学合成，且在光照下存在光漂白的缺点。因此，研究者急需开发光热性能稳定的近红外光热材料。苝酰亚胺是一种光、热和化学稳定性优异的荧光染料，其阴离子自由基具有强烈的近红外吸收特点。然而，阴离子自由基容易在空气中被...
http://www.polymer.cn/sci/kjxw15175.html |
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