Polyfvinyl alcohol PVA

Acronyms DWNT Double-walled nanotube PVA Polyfvinyl alcohol) PTh Poly(thiophene) PAN Poly(acrylonitrile) MA Methyl acrylate PMMA Polyfmethyl methacrylate) PS Polystyrene PLA Poly DL-lactide PC Polycarbonate PCL ... 

The polymerization proceeds in an autoclave, by dissolving vinyl acetate, polyfvinyl alcohol) (PVA), ferrous sulfate heptahydrate, and acetic acid in water. 

Ki ure 99. Regulation of 1hc alignment of a ncmgljc liquid cryiial by i rubbed polyfvinyl alcohol) I PVA) film auifpcc-mtMlifcd v.i h fccoblirtcene residue. ... 

Quaternized polyfvinyl alcohol) (q-PVA) cross-linked with glutaraldehyde... 

A similar technique was used for the preparation of polystyrene (PS)-Si02 nanohybrids, where colloidal silica solutions were mixed with PS solutions by means of ultrasonic homogenization [60]. Also, latex-silica nanohybrid films were synthesized upon mixing aqueous colloidal suspensions of silica and nanolatex polymer beads [61-63], Other silica-based nanohybrid systems with poly(ethylene oxide) (PEO) [64, 65], polyfvinyl alcohol) (PVA) [66], PS [67], polybutylacrylate [68], or PMMA [69] can be prepared by using the same suspension blending method. 

FIGURE 3.26 Change in x-ray diffraction (XRD) pattern of carbon-coated TiOj prepared from the mixtures of ST-01 with polyfvinyl alcohol) (PVA) in different mixing ratios at 700°C (refer to Table 3.6). 

The next step in our plan to improve the flame resistant properties of the polyfvinyl alcohol) - nylon-6,6 system was the substitution of pure poly (vinyl alcohol) by poly( vinyl alcohol) oxidized by potassium permanganate (PVA-ox). This approach was based on the fire behavior of the (PVA-ox) itself. It was shown experimentally using a cone calorimeter that there was a dramatic decrease of the rate of heat release and significant increase in ignition time for the oxidized PVA in comparison with the original PVA. 

Chu et al. [70] demonstrated a simple and effective route for the hydrophilic surface modification of ceramic-supported PES membranes by synthesizing a polyfvinyl alcohol) (PVA)/polyamide (PA) composite thin sinface layer with an interfacial polymerization method (IP) method. The reaction of the interfadal polymerization is schematically shown in Figure 2.7. A prepared tubular ceramic-supported PES membrane (both ends sealed) was immersed in a terephthaloyl chloride solution in benzene and... 

Polsoirea, 99 Polsoirethane, 99 Poly(vinyl acetate), 199, 200 Poly(vinyl alcohol) (PVA), 9,20,94-5, 108, 110, 200, 202, 204, 258-9 analysis of dynamics, 261-2 aqueous system, 58 C CP/MAS NMR spectrum, 259-61 crosslink structure, 259-61 Poly(vinyl alcohol) (PVA)/sodium borate, self-correlation function, 205 Polyfvinyl alcohol) (PVA)-water gel, 57 Polyfvinyl chloride) (PVC), 109, 324 Poly(vinyl methylether) (PVME), 108, 245 Porod law, 212 Porod region, 196 Proportionality equations, 127 Protein gels, 288-90 Proteins, 282... 

Figure 5 H-NMR spectra of Polyfvinyl alcohol) and its model compounds of irregular bondings in PVA...

It should also be noted that attention should be taken to the fact that the performance of SiO-anodes depend importantly on the choice of binder, which makes difficult the quantitative comparison of the electrochemical performance between different works. The study of the electrochemical properties for different binders has been made by Komaba et al. [423] who showed that the electrochemical reversibility of SiO anodes is drastically improved by using polyfacrylic acid) (PAA) as the binder in comparison to the PVdF, sodium carboxymethyl cellulose (NaCMC), and polyfvinyl alcohol) PVA hinders. Polyimide as hinder was also found to give very good results [424], A concern with SiO is the thermal instahility due to the sudden exothermic peak in the region of 350-400 °C. This enthalpy peak, however, is importantly reduced (hut not suppressed) hy coating SiO with anatase TiOa [425]. This has been attributed to the thermal stability of lithiated Ti02 and its SEI [279, 280]. 

PC/ABS polycarbonate/acrylonitrile butadiene styrene PVA poly(vinyl alcohol) sometimes polyfvinyl acetate)... 

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