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Phase Transition and Micellar Aggregation Behavior of PS-b-PNIPAM in Organic Solvent-water Solutions
关键字:Phase,Transition,Micellar,Aggregation,Behavior,PNIPAM,Organic,Solvent,water,Solutions, Poly (N-isopropylacrylamide) (PNIPAM) is a typical example of smart polymers, which exhibits a well-known lower critical solution temperature (LCST) in water and its conformation changed by adjusting temperature.
http://www.polymer.cn/research/dis_info1895 |
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PS/SWNT 复合材料的界面分子设计
关键字:anionic polymerization, pyrene-capped polystyrene, SWNT, dispersion 碳纳米管(CNT)因其超高长径比、较低的密度、优异的物理机械性能以及高的热、电传导率而被视为制备高性能、多功能聚合物纳米复合材料的理想填料。
http://www.polymer.cn/research/dis_info13590 |
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Macroporous calcium carbonate prepared by using PS-b-PAA spherical-like micelles as template
关键字:Calcium carbonate, Macroporous, Self-assembly, Atom transfer radical polymerization Spherical calcium carbonate composite with definite morphology was prepared using the polystyrene-bpoly( acrylic acid) micelles as template. The PS-b-PAA with narrow molecular weight distribution was prepared via the atom transfer radical polyme...
http://www.polymer.cn/research/dis_info11771 |
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PS/PI核壳型纳米微球的可控制备
关键字:嫁接 核壳 可控 本文的设计思路如图1所示,先采用常规乳液聚合的方法合成纳米级单分散交联聚苯乙烯(PS)微球,再加入丙烯酸单体在微球表面引入-COOH基团,羧基的引入是为了能与下步制备的大分子链上的环氧基团反应从而达到嫁接的目的。大分子链的制备采用活性自由基聚合的方法,以异戊二烯为主单体,甲基丙烯酸缩水甘油酯(GMA)为功能单体[2],制备出含环氧基团的分子量可控的聚异戊二烯,并与前步所制备的改性PS微球反应,从而得到核壳结构的纳...
http://www.polymer.cn/research/dis_info9532 |
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Fluorenscent CdTe-PS Nano-Composite and Ordered Polymeric Structure in Nano/Micrometer Scale
关键字:Fluorenscent,CdTe,Nano,Composite,Ordered,Polymeric,Structure,Nano,Micrometer,Scale, In this abstract, some novel approaches to ordered structures in nano and micrometer scale were reported. Such as assembly of a 2-D ordered arrays of polymer rings in nano and micro meter scale by wetting-dewetting procedure,
http://www.polymer.cn/research/dis_info5957 |
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PS、SEBS对POE的协同增强作用
关键字:SEBS,POE,协同,增强,作用, 乙烯-α-辛烯共聚热塑性弹性体(POE)的强度主要由部分聚乙烯结晶相“物理交联”点之间的范德华力提供,与化学交联键相比,其键能较弱,表现为拉伸强度较低。辛烯支链的引入破坏了聚乙烯的结晶,使POE的熔融峰温度下降,DSC测试表明聚乙烯结晶相在50℃就开始熔融,聚乙烯结晶相完全熔融时(<80℃)“物理交联”补强作用丧失。同时POE分子量分布窄使其加工性能较差。这些缺点大大限制了该类热塑性弹性体在一些领域的应用,所...
http://www.polymer.cn/research/dis_info5045 |
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Phase Transition and Micellar Aggregation Behavior of PS-b-PNIPAM in Organic Solvent-water Solutions
关键字:Phase,Transition,Micellar,Aggregation,Behavior,PNIPAM,Organic,Solvent,water,Solutions, Poly (N-isopropylacrylamide) (PNIPAM) is a typical example of smart polymers, which exhibits a well-known lower critical solution temperature (LCST) in water and its conformation changed by adjusting temperature.
http://www.polymer.cn/research/dis_info1895 |
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嵌段共聚物PS-b-PtBA的ATRP法合成及其多孔膜的制备
以α-溴丙酸甲酯(MBrP)为引发剂,CuBr/五甲基二亚乙基三胺(PMDETA)为催化体系,制备了出了窄分子量分布的聚苯乙烯。以PS-Br为大分子引发剂、CuBr/PMDETA为催化剂,合成两嵌段共聚物PS-b-PtBA,通过GPC、FTIR、1H-NMR、TGA进行表征。将水解后的两亲性嵌段共聚物PS-b-PAA利用呼吸图技术制备蜂窝状多孔膜。
http://www.polymer.cnt//ss/zhangming/publicationsshow_10560.html |
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Synthesis of the complex of lanthanum (III) with N-(2-amino ethyl) maleamic acid radical and its application to PVC as thermal stabilizer
关键字:N-(2-amino ethyl) maleamic acid radical;Lanthanum (III); Polyvinyl chloride (PVC); Heat stabilizer; Thermogravimetric analysis (TGA)
The complex (LaL3) of lanthanum (III) with N-(2-amino ethyl) maleamic acid radical (L) was synthesized and characterized by Fourier infrared spectrum (FT-IR), elemental analysis and melting point measure-ments. The complex LaL3 was a chelate, in which lanthanum (III) ion was coordinated with the carboxylate oxygen and amide nitrogen atoms of N-(2-amino ethyl) maleamic acid radical (L). The sta...
http://www.polymer.cn/research/sy_info19462 |
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湿法改性硫酸钙粉体填充PVC复合材料性能研究
关键字:湿法改性 硫酸钙粉体 PVC 复合材料 近年来无机填料在高分子中的应用发展很快。硫酸钙是重要的无机化工基本原料之一,由于其表面有亲水性较强的羟基,使硫酸钙粉体填料与有机高聚物基质的亲和性差,易造成在高聚物基体中分散不均匀,并形成界面缺陷。因此为了改善硫酸钙填料的应用性能,需要对其进行表面处理。
http://www.polymer.cn/research/ct_info581 |
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