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Polymers
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【化学】聚合体【化学】聚合体

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英文: Abstract: Micellization of block copolymers in selective solvents was reviewed with 69 references. The structure, kinetics, dynamics and hydronamics behavior of the formation of block copolymer micelles were discussed.

中文: 文摘:综述了近20年来在选择性溶剂中嵌段聚合物缔合行为的研究进展,探讨了胶束结构、表征方法及胶束形成的热力学、动力学和流体力学。       更详细...
英文: Abstract: Polyphenylacetylenes were synthesized by [Rn(nbd)Cl]2 and WCl6/Ph4Sn catalyst systems in N2 at room temperature.Polymers with high yield and high molecular weight were obtained.Their structures were characterized by UV,IR,NMR and GPC,respectivel

中文: 文摘:使用有机金属铑、金属钨/四苯基锡催化剂体系聚合苯乙炔,分别获得了高产率和高分子量的聚苯乙炔.使用UV,IR,NMR,GPC等分别对聚合物结构进行了表征.采用不同波长的激发光对聚合物荧光性能进行研究,详细分析了聚合物结构与荧光性能之间的关系.研究结果发现,不同聚合物结构对聚合物荧光性能产生很大影响,规整性高的聚合物,将有较高的发光量子效率;聚合物规整性差,将可能导致多个荧光发光结构点,其荧光强度降低.聚合物荧光光谱研究将对某些共轭聚合物结构的规整性分析提供一些有用的信息.       更详细...
英文: And some methods for improving their poor solubility are introduced, including: incorporating bulky groups, hydrophilic groups, water soluble polymers and hyper-branched dendrimers; synthesizing branched derivatives; and degrading them into oligosaccharid

中文: 对其解决的方法进行了分析总结:将体积较大的侧基或亲水性基团/大分子引入到分子链上,支链化或键接超支化合物,以及低聚糖化,以满足不同应用领域特别是生物医学工程的要求。       更详细...
英文: As a result of different substrates, composite materials are divided into three categories: polymer-based composites (fiber reinforced polymers or FRPs), metal matrix composites (MMC), and ceramic matrix composites (CMC).

中文: 按基材的不同,复合材料可分高分子基复合材料、金属基复合材料和陶瓷基复合材料三大类。       更详细...
英文: As new kinds of non-linear polymers, dendritic polymers have formed a promising kind of functional materials and have been successively used in various applications due to their characteristics including low viscosity, better solubility in conventional so

中文: 摘要树形聚合物高度支化,与线形结构的聚合物相比具有较低的粘度及良好的溶解性,而且其单分子尺寸通常在纳米尺度,在多方面具有广阔的应用前景。       更详细...
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