Nanostructures poly derivatives

McGann JP, McCullough LA, Matyjaszewski K, Kowalewski T. Mass spectroscopic investigations of nanostructured carbon derived from poly(n-butyl acrylate)-b-polyacrylonitrile copolymers. In Abstracts of Papers, 236th ACS National Meeting 2008 Philadelphia, PA. 

Nanostructured Poly(Acetylene) and Poly(Diacetylene) and their Derivates... 

Micrometric-scale materials generally display the same physical properties as those in bulk form however, nanometric-scale materials may exhibit physical properties that are distinctively unlike those of bulk. Materials in this size range possess remarkable specific properties deriving from the transition from atoms or molecules to bulk form that takes place in this size range. On the one hand, the interfaces in poly crystalline microstructured materials are considered as defects that influence the macroscopic properties. On the other hand, in poly crystalline nanostructured materials, the interface dominates and the bulk plays a totally different role. Numerous experimental studies have shown that, if a material s particle size is less than the critical size of about 10 nm, its bulk properties change noticeably. A particle of about 10 nm contains 10" -10 atoms, 1-5% of which are on the surface of the particle and contribute substantially to the material s physicochemical properties [30]. Ensembles of such nanostructures will be shown here to be important in electrochemical applications such as electrodes [8,9,12,13,31-38]. 

Polythiophene derivates are polymers of great interest, widely used in organic electronics. Thus, the utilization of polythiophene nanofibers could open the path to the development of nanostructured organic electronics with a high surface area for a range of applications. El-Aufy, in his PhD thesis, studied poly(3,4-ethylene dioxythiophene)/ poly(styrenesulfonate) PEDOT/PSS nanofibers and nanocomposites using PAN as a... 

Conducting poly thiophene (PTh)-SWCNTs composites were synthesized by the in situ chemical oxidative polymerization method.Using an excitation wavelength of 514 nm, the authors studied the pristine and the derived materials. The Raman spectrum for the SWCNT PTh composites is clearly an addition of the corresponding spectra of PTh and SWCNTs, demonstrating that SWCNTs served as templates in the formation of a co-axial nanostructure for the composites. ... 

Mallakpour S, Dinari M. Chiral poly(amide-imide)/organoclay nanocomposites derived from pyromelUtoyl-bis-l-isoleucine and benzimidazole containing diamine synthesis, nanostructure, and properties. Colloid Polym Sci 2012 290(l) 81-90. 

Poly (thiophene)s are of particular interest as electfochromic materials owing to their chemical stability, ease of synthesis and processability. For the most part, current research has been focused on composites, blends and copolymer formations of several conjugated polyheterocyclics, polythiophene and its derivatives, especially PEIX)T. In one example, poly(3,4-ethylenedioxythiophene) (PEDOT)/poly(2-acrylamido-2-methyl-l-propanesulfonate) (PAMPS) composite films were prepared by Sonmez et al. for alternative electrochromic applications [50]. Thin composite films comprised of PEDOT/PAMPS were reported to switch rapidly between oxidized and neufial states, in less than 0.4 s, with an initial optical contrast of 76% at A.max. 615 nm. Nanostructured blends of electrochromic polymers such as polypyrrole and poly(3,4-ethylenedioxythiophene) were developed via self-assembly by Inganas etal. for application as an electrochromic window [26]. Uniir etal. developed a graft-type electrochromic copolymer of polythiophene and polytetrahydrofuran for use in elecfiochromic devices [51]. Two EDOT-based copolymers, poly[(3,4-ethylenedioxythiophene)-aZ/-(2,5-dioctyloxyphenylene)] and poly[(3,4-ethylenedioxythiophene)-aft-(9,9 -dioctylfluorene)] were developed by Aubert et al. as other candidates for electrochromic device development [52],... 

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