منابع مشابه
Ionically Bonded Filler-Elastomer Composites*
Tertiary amine-modified corn starches were converted to their basic or hydroxide form and combined with carboxylated butadiene-acrylonitrile copolymer and butadiene-styrene-sulfonic acid polymer to produce ionically bonded filler-elastomer composites. An increasing percentage of the elastomer fraction in the starch-elastomer composite is insolubilized as the starch-to-elastomer ratio increases....
متن کاملUniversal dielectric response of variously doped CeO2 ionically conducting ceramics
The Jonscher power law, or ‘‘universal dielectric response’’ ~UDR! behavior was studied for a range of CeO2 solid solutions with Y 31 and Gd dopants, with particular emphasis on dilute systems which possess relatively simple defect structures. The results show power-law frequency dependence of the ac conductivity, with exponent s50.6160.03, independent of temperature and concentration. The cond...
متن کاملNearly constant loss or constant loss in ionically conducting glasses: A physically realizable approach
Conductivity exhibiting power-law frequency response with an exponent of unity leads to frequency-independent dielectric loss. Such constant-loss ~CL! behavior is not physically realizable over a nonzero frequency range, and approximate expressions that have been used to represent it are inconsistent with the Kronig–Kramers relations. Response models are proposed and investigated that do satisf...
متن کاملSmart conducting polymer composites having zero temperature coefficient of resistance.
Zero temperature coefficient of resistance (TCR) is essential for the precise control of temperature in heating element and sensor applications. Many studies have focused on developing zero-TCR systems with inorganic compounds; however, very few have dealt with developing zero-TCR systems with polymeric materials. Composite systems with a polymer matrix and a conducting filler show either a neg...
متن کاملEngineering hydrophilic conducting composites with enhanced ion mobility.
Ion mobility has a direct influence on the performance of conducting polymers in a number of applications as it dictates the operational speed of the devices. We report here the enhanced ion mobility of poly(3,4-ethylene dioxythiophene) after incorporation of gelatin. The gelatin-rich domains were seen to provide an ion pathway through the composites.
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ژورنال
عنوان ژورنال: Canadian Journal of Chemistry
سال: 1996
ISSN: 0008-4042,1480-3291
DOI: 10.1139/v96-239