国家自然科学基金(20423003)

作品数:11被引量:27H指数:3
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相关作者:闫寿科苏朝晖晏超沈德言张建明更多>>
相关机构:中国科学院罗格斯大学河南科技大学中国科学院研究生院更多>>
相关期刊:《科学通报》《应用化学》《Science Bulletin》更多>>
相关主题:结晶动力学共轭聚合物卟啉超薄膜红外光谱更多>>
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QCM-D研究蛋白质与多糖的相互作用被引量:8
《应用化学》2010年第5期505-509,共5页林园 黄庆荣 苏朝晖 
国家自然科学基金(20774097,20423003);基金委创新群体(50621302)资助项目
应用具有耗散因子功能的石英晶体微天平(QCM-D)检测了多糖多层膜的构筑过程以及蛋白质在多层膜上的吸附行为。研究结果表明,通过层层组装的方法,可以实现多糖卡拉胶多层膜的构筑,并且随着卡拉胶电荷密度的增加,其组装量减少。研究了牛...
关键词:石英晶体微天平(QCM-D) 蛋白质 多糖 
Hyperbranched polymer-cored star polyfluorenes as blue light-emitting materials
《Chinese Science Bulletin》2008年第18期2770-2776,共7页HAN Yang SUN MingHao FEI ZhuPing BO ZhiShan 
the National Natural Science Foundation of China (Grant Nos. 20574075, 20774099, 20423003 and 50521302)
Hyperbranched polymer-cored star polyfluorenes with high molecular weights and narrow molecular weight distribution were prepared by palladium-catalyzed one-pot Suzuki polycondensation of multi- functional cores and a...
关键词:发光二极管 聚合物 星形高聚物 缩聚作用 
Effect of crystallization temperature and propylene sequence length on the crystalline structure of propylene-ethylene random copolymers被引量:1
《Chinese Science Bulletin》2008年第12期1804-1812,共9页GOU QingQiang LI HuiHui YU ZhenQiang CHEN ErQiang ZHANG YuDong YAN ShouKe 
the Outstanding Youth Fund of the National Natural Science Founda-tion of China (Grant No 20425414);National Natural Science Foundations of China (Grant Nos. 50521302, 20423003, 20574079,and 20604031);State "973" Pro-grams from the Ministry of Science and Technology of China (Grant No.2003CB615602)
Crystallization behavior and resultant crystalline structure of a series of temperature-rising elu-tion-fractionated specimen of a Ziegler-Natta catalyst-synthesized propylene-ethylene random co-polymer were studied b...
关键词:结晶 温度 晶体 乙烯 共聚物 
磺化POSS的合成及其与聚电解质的组装被引量:2
《应用化学》2008年第3期270-275,共6页武国军 苏朝晖 
国家自然科学基金(50403008,20423003);基金委创新群体(50621302)资助项目
合成了具有立方笼状结构的磺化八苯取代倍半硅氧烷(SOPS),经红外光谱(FTIR)及核磁共振波谱(NMR)分析,确认了产物的结构。用携带负电荷的SOPS与聚丙烯胺(PAH)进行层层组装,制备了纳米复合超薄膜。通过改变PAH溶液的pH值调节SOPS与PAH的...
关键词:层层组装 聚倍半硅氧烷(POSS) 聚电解质 复合多层膜 
A comparison study on the melt crystallization kinetics of long chain branched and linear isotactic polypropylenes
《Chinese Science Bulletin》2008年第2期188-197,共10页ZENG Wei LIU JiChun ZHOU JunFeng DONG JinYong YAN ShouKe 
the Outstanding Youth Fund and the National Natural Science Founda-tion of China (Grant Nos. 50521302, 20574079 and 20423003)
The isothermal and non-isothermal crystallization kinetics of LCBPP and linear-iPP was investigated by optical microscopy and differential scanning calorimetry (DSC). The optical microscopy results in the isothermal c...
关键词:聚丙烯 长链分岔 线性全规聚丙烯 结晶动力学 
Individual dispersion of synthetic imogolite nanotubes via droplet evaporation被引量:1
《Chinese Science Bulletin》2007年第16期2301-2303,共3页YANG HuiXian SU ZhaoHuit 
Supported by the National Natural Science Foundation of China (Grant Nos. 50403008 and 20423003);the NSFC Fund for Creative Research Groups (Grant No. 50621302)
Morphology of synthetic imogolite nanotubes formed in droplet evaporation was investigated by transmission electron microscopy and electron diffraction. The nanotubes form a dense entangled network at higher concentra...
关键词:浮石质 纳米管 人工合成 纳米技术 微滴蒸发 
长链支化聚丙烯和线性聚丙烯熔体结晶动力学的对比研究被引量:5
《科学通报》2007年第19期2246-2254,共9页曾伟 刘继纯 周俊峰 董金勇 闫寿科 
国家杰出青年科学基金(批准号:50521302);国家自然科学基金(批准号:20574079和20423003)资助项目
通过光学显微镜(OM)和差示扫描量热仪(DSC)对长链支化聚丙烯(LCBPP)和线性等规聚丙烯(Linear-iPP)的等温及非等温结晶动力学作了详细的研究.OM结果显示:在等温结晶过程中,由于LCBPP中长支链的存在阻碍了链段的扩散,导致其晶体生长速度比...
关键词:长链支化聚丙烯 线性聚丙烯 结晶动力学 
Structure characterization of melt drawn polyethylene ultrathin films
《Chinese Science Bulletin》2006年第23期2844-2850,共7页YAN Chao ZHANG Jianming SHEN Deyan YAN Shouke 
This work was supported by the National Natural Science Foundation of China(Grant Nos.20425414,20374056,20304018,50521302 and 20423003);the 973 Programs from M0ST of China.
Highly oriented ultrathin polyethylene (PE) films were prepared by a melt-draw technique. Transmission electron microscopy study on the obtained ultrathin films indicates that the melt drawn PE thin films consist of h...
关键词:超薄PE薄膜 定向 红外线光谱学 电子显微术 
Synthesis and photocurrent response of porphyrin-containing conjugated polymers
《Chinese Science Bulletin》2006年第11期1287-1295,共9页ZHAO Jinling LI Binsong B0 Zhishan 
This work was supported by the National Natural Science Foundation of China (Grant Nos. 20225415, 20423003 and 20374053);the Major State Basic Research Development Program (Grant No. 2002CB613401).
Porphyrin-containing conjugated poly- mers with fluorene or carbazole as spacer groups were prepared by Sonogashira cross-coupling reac- tions. The polymers were of high molecular weight and the flexible alkyl chains ...
关键词:卟啉 共轭聚合物 光电流响应 合成 
熔体拉伸聚乙烯超薄膜的结构表征被引量:9
《科学通报》2006年第15期1751-1756,共6页晏超 张建明 沈德言 闫寿科 
国家自然科学基金(批准号:20425414,20374056,20304018,50521302,20423003);国家基础研究发展规划(批准号:2004CB720606)资助项目.
用熔体拉伸法制备了高度取向的聚乙烯(PE)超薄膜.透射电子显微镜研究表明,这种熔体拉伸法制备的PE超薄膜包含大量沿着垂直于熔体拉伸方向平行排列的侧放(edge-on)片晶.电子衍射结果表明,PE超薄膜晶区内的分子链在薄膜平面内并沿着拉伸...
关键词:PE超薄膜 取向 红外光谱 电子显微镜 
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