The thermal decomposition kinetics of urushiol-Cu, urushiol-Nd and urushiol-Ti chelatepolymers has been studied by non-isothermal thermogravimetry. The results suggest that thethermal decomposition kinetics of three c...The thermal decomposition kinetics of urushiol-Cu, urushiol-Nd and urushiol-Ti chelatepolymers has been studied by non-isothermal thermogravimetry. The results suggest that thethermal decomposition kinetics of three chelate polymers are all of first order. Their averageactivation energy values of the thermal decomposition calculated by Ozawa-(I) method are 110,79, 136. 98 and 163. 64 kJ mol^(-1) respectively, which increase linearly with the metal valence of themetal chelate polymers展开更多
The coordination polymer of copper electropolyurushiol(EPU-Cu^(2+)) was obtained by the reaction of copper chloride with electropolyurushiol (EPU) in an isopropyl alcohol solution. The properties of EPU-Cu^(2+) were s...The coordination polymer of copper electropolyurushiol(EPU-Cu^(2+)) was obtained by the reaction of copper chloride with electropolyurushiol (EPU) in an isopropyl alcohol solution. The properties of EPU-Cu^(2+) were studied by means of ESR, FTIR, XPS, DMTA and TG-DTA. The results of AES show that the content of Cu^(2+) was 8.63%. The electric resistances of EPU-Cu^(2+) and EPU were determined to be 9, 37×10^(10) Ω and 7.90×10^(10) Ω respectively. It was also ascertained that in EPU-Cu^(2+) each Cu^(2+) is coordinated with two units hydroxyl in EPU, making the EPU-Cu^(2+) cross-link further. As a result, the title polymer exhibits an insolubility in most of organic solutions, a higher glass transition temperature and thermal resistance.展开更多
基金This work is supported by the National Natural Science Foundation of China
文摘The thermal decomposition kinetics of urushiol-Cu, urushiol-Nd and urushiol-Ti chelatepolymers has been studied by non-isothermal thermogravimetry. The results suggest that thethermal decomposition kinetics of three chelate polymers are all of first order. Their averageactivation energy values of the thermal decomposition calculated by Ozawa-(I) method are 110,79, 136. 98 and 163. 64 kJ mol^(-1) respectively, which increase linearly with the metal valence of themetal chelate polymers
基金Supported by the National Natural Science Foundation of China.
文摘The coordination polymer of copper electropolyurushiol(EPU-Cu^(2+)) was obtained by the reaction of copper chloride with electropolyurushiol (EPU) in an isopropyl alcohol solution. The properties of EPU-Cu^(2+) were studied by means of ESR, FTIR, XPS, DMTA and TG-DTA. The results of AES show that the content of Cu^(2+) was 8.63%. The electric resistances of EPU-Cu^(2+) and EPU were determined to be 9, 37×10^(10) Ω and 7.90×10^(10) Ω respectively. It was also ascertained that in EPU-Cu^(2+) each Cu^(2+) is coordinated with two units hydroxyl in EPU, making the EPU-Cu^(2+) cross-link further. As a result, the title polymer exhibits an insolubility in most of organic solutions, a higher glass transition temperature and thermal resistance.
