Fibers Poly prepared using

A core-sheU CNT-PPY nanocomposite fiber was prepared using an electrochemical deposition method. In the fiber-shaped supercapacitor with CNT-PPY electrodes, PPY provides a pseudocapacitance due to its reversible dropping and de-dropping reactions in a poly(vinyl alcohol) (PVA)/H2S04 gel electrolyte. The capacitance of the CNT-PPY fiber-shaped supercapacitor reaches 36 Fg, which is 7 times higher than that of a pure CNT fiber-shaped supercapacitor. 

Polyesters [2] find use in fibers [poly(ethylene terephthalate), poly(ethylene oxybenzoate), poly(ester ethers), poly(ester amides), etc.] [1], coatings (especially unsaturated polyesters) [4], plasticizers, adhesives, polyurethane base resins, films, etc. Cross-linked polyesters prepared from glycerol and phthalic anhydride (alkyd resins) have been reviewed [20], High-melting poly aryl esters have been investigated for high-temperature applications. 

Gaul and co-workers (13,14) prepared a variety of polysilazanes by using chlorosilanes and hexamethyldisilazane to control polymer molecular weight, rheology, and spinnability (equation 9). Fibers were prepared from the poly(methyldisilylazane) (MPDZ) system (equation 10). 

Kenawy et al. [114] used electrospun fiber mats prepared either from PLA, poly (ethylene-co-vinyl acetate) (PEVA), or from a 50 50 blend of the two as carriers to... 

Several SP materials have been used for the extraction of FRs from aqueous samples, plasma and milk (Table 31.7). Similar materials have been used for all FRs. Typical SP materials include Ci8 and Cg bonded to porous silica, highly cross-linked poly(styrene divinylbenzene) (PS-DVB), and graphitized carbon black (GCB). It is also possible to use XAD-2 resin for extraction of various FRs, pesticides, and plastic additives from large volumes of water (100 1). The analytes can then be either eluted from the resin by acetone hexane mixture, or Soxhlet extracted with acetone and hexane. For a specific determination of diphenyl phosphate in water and urine, molecularly imprinted polymers have been used in the solid phase extraction. The imprinted polymer was prepared using 2-vinylpyridine as the functional monomer, ethylene glycol dimethacrylate as the cross linker, and a structural analog of the analyte as the template molecule. Elution was done with methanol triethylamine as solvent. Also solid phase microextraction (SPME) has been applied in the analysis of PBDEs in water samples. The extraction has been done from a headspace of a heated water sample (100°C) using polydimethylsiloxane (PDMS) or polyacryl (PA) as the fiber material. ... 

Sis et al. prepared composites based on poly (lactic acid) (PLA)/poly (butylene adi-pate-co-terephthalate) (PBAT)/kenaf fiber using a melt blending method [39]. A PLA/ PBAT blend with the ratio of 90 10 wt%, and the same blend ratio reinforced with various amounts of kenaf fiber were prepared and characterized. The addition of kenaf fiber reduced the mechanical properties sharply due to the poor interaction between the fiber and polymer matrix. Modification of the composite by (3-aminopropyl)tri-methoxysilane (APTMS) showed improvements in mechanical properties, increasing up to 42.5, 62.7 and 22.0% for tensile strength, flexural strength and impact strength, respectively. The composite treated with 2% APTMS successfully exhibited optimum... 

Ihere are only a few recent studies on the fabrication and characterization of stand-alone bio-polymer nanocomposite films or coatings displaying Hquid repellent properties. Obeso et al. [23] developed a superhydrophobic surface by precipitation of poly(hydroxybutyrate) (PHB) on the surface of cellulose fibers of papers using a phase separation process. The same authors used a similar approach to synthesize biodegradable superhydrophobic poly (L-lactic acid) substrates in order to control cell adhesion. Superhydrophobic/superoleophilic porous poly (L-lactic acid) films were also prepared by Xue et al. for water-oil separation applications [24]. Yohe et al. [25] prepared 3D superhydrophobic materials from biocompatible... 

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