Chemical modification of argon-plasma-pretreated poly(tetrafluoroethylene) (PTFE) film by UV-induced surface graft copolymerization with glycidyl methacrylate (GMA), followed by epoxide-ring-opening reaction with aniline (An), and finally oxidative graft polymerization with aniline had been carried out to render the PTFE surface conductive. The surface composition and microstructure of the graft-copolymerized PTFE films were studied by X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM), respectively. The graft concentration of the GMA polymer and An polymer increased with increasing concentration of the respective monomer used for graft polymerization. Ethanol, when used as a solvent, catalyzed the coupling reaction of epoxide with An and should be of more than 40 vol % in concentration to achieve the optimum effect. The physicochemical characteristics of the polyaniline (PANI) chains grafted onto PTFE film surface were grossly similar to those of the PANI homopolymer. The surface resistance of the aniline graft-polymerized PTFE film was reduced to the order of about 104

The polymerization to polyaniline nanofibers was carried out in an aqueous system using aniline, 1 M HCl. and ammonium peroxydisulfate (APS) with additional use of sodium hypochlorite solution as a co-oxidant. The addition of sodium hypochlorite solution was made either before or after the addition of APS. This new method always produces polyaniline nanofibers with long length. Additional advantages of this new method are discussed. The effect of aniline concentration, hypochlorite concentration, different acid use, reaction temperature, and both aniline and hypochlorite purity on morphology and electrical property of the nanofibers synthesized by this new method was investigated.

研究了分散的颗粒状本征态聚苯胺（EB）对冷轧钢（CRS）的腐蚀防护作用。在去离子水或NaCl溶液的作用下，EB颗粒可在CRS表面形成一层致密的氧化物钝化层，该氧化物层使CRS的腐蚀电位升高了200mV，并显著降低了腐蚀电流密度。在310mass%NaCl溶液中，单独的EB膜稳定性较差，不能提供有效的防腐性能，分散在环氧树脂中的EB保持了EB的氧化-还原特性，这种涂层材料能使CRS钝化，具有极好的稳定性，因而可提供极好的防腐性能。EB的存在使环氧树脂涂层的阻隔作用下降，因此需要涂敷较好阻隔作用的面漆。在含有EB的环氧树脂涂层上涂覆具有良好阻隔作用的面漆，可显著提高其防腐性能。

-hydroxybenzoyl)benzene]-4-fluorophthalimide, was prepared from 4-fluoroisophthalic anhydride and 3,5-bis(4-hydroxybenzoyl)aniline. The latter was synthesized in three steps starting from commercially available 5-nitroisophthalic acid. The AB2 monomer was then polymerized via aromatic fluoride-displacement reaction to afford the corresponding hydroxylterminated hyperbranched polymer, HT-PAEKI, which was then functionalized with allyl and propargyl bromides as well as epichlorohydrin to afford allyl-terminated AT-PAEKI, propargyl-terminated PTPAEKI, and epoxy (glycidyl)-terminated ET-PAEKI, in that order. All hyperbranched poly(ether-ketoneimide) s were soluble in common organic solvents. Intrinsic viscosities of HT-, AT-, PT-, and ET-PAEKI in NMP were 0.13, 0.08, 0.08, and 0.08 dL/g, in that order. AT-PAEKI displayed an exotherm due to Claisen rearrangement at 269℃ and allyl-based thermal-cure reaction at 343℃. PT-PAEKI displayed only a single, strong exotherm at 278℃. Because of hydrogen bonding, HT-PAEKI displayed Tg of 224℃ while its derivatives exhibited lower Tg values ranging from 122 to 174℃. Finally, AT-PAEKI was blended with a bisphenol A-based bis(maleimide) (BPA-BMI) in various weight ratios. The results from differential scanning calorimetric study indicated that the presence of AT-PAEKI (up to 32 wt %) significantly affect the glass transition temperatures and cure behavior of BPA-BMI. Dynamic mechanical analysis comparing cured BPA-BMI with the 5 wt % AT-PAEKI blend corroborates this increase in glass transition temperature.

A process is described to produce single sheets of functionalized graphene through thermal exfoliation of graphite oxide. The process yields a wrinkled sheet structure resulting from reaction sites involved in oxidation and reduction processes. The topological features of single sheets, as measured by atomic force microscopy, closely match predictions of first-principles atomistic modeling. Although graphite oxide is an insulator, functionalized graphene produced by this method is electrically conducting.

在化学氧化聚合的反应介质中分散二氧化硅粒子，苯胺（ANI）优先在二氧化硅粒子表面聚合，形成聚苯胺（PANI）包覆的二氧化硅复合粒子（SD/PANI）。扫描电子显微镜（SEM）和透射电子显微镜（TEM）观察表明，ANI用量较小时，在二氧化硅粒子表面形成均匀的PANI层，其厚度在10～60nm之间；ANI用量较大时，二氧化硅粒子表面有颗粒状PANI形成。紫外2可见光光谱（UV2VIS）和X射线光电子能谱（XPS）分析表明，复合粒子表面PANI的氧化程度随ANI用量的减小有所下降。复合粒子表面的PANI对二氧化硅结合牢固，这种复合粒子能像纯PANI颗粒一样使冷轧钢（CRS）表面钝化，可以作为廉价的缓蚀剂用于防腐涂料。