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
Urushiol polymer containing B-N bond (PUBN) was synthesized with urushiol-boron polymer and diethylene triamine. Its structure was characterized by XPS, IR, UV, HPLC, DTA-TG and elemental analysis. The physico-mechani...Urushiol polymer containing B-N bond (PUBN) was synthesized with urushiol-boron polymer and diethylene triamine. Its structure was characterized by XPS, IR, UV, HPLC, DTA-TG and elemental analysis. The physico-mechanical and anticorrosive properties of the polymer were also investigated. The results show that the coating of PUBN can be hardened in 2 h at room temperature and its film has excellent physico-mechanical properties and good anticorrosive properties.展开更多
The synthetic method and structural characteristics of urushiol-titanium chelates (UT) and urushiol-titanium chelate polymer for anticorrosive coatings have been studied.Two kinds of coating films made from UT polymer...The synthetic method and structural characteristics of urushiol-titanium chelates (UT) and urushiol-titanium chelate polymer for anticorrosive coatings have been studied.Two kinds of coating films made from UT polymer show excellent physico-mechanical properties and possess good chemical resistance to strong acids and alkalis, many kinds of salt solutions and organic solvents, stable at high temperature.展开更多
Title polymeric complex(EPU Eu(Ⅲ)) was obtained from triisobutoxy euro pium Eu(C 3H 7O) 3 with electropolyurushiol in isobutyl alcohol. The structure and property of the complex were characterized by FT IR, XPS, DMTA...Title polymeric complex(EPU Eu(Ⅲ)) was obtained from triisobutoxy euro pium Eu(C 3H 7O) 3 with electropolyurushiol in isobutyl alcohol. The structure and property of the complex were characterized by FT IR, XPS, DMTA, AES, TG DTA and fluorescence spectrophotometry. The complex with Eu(Ⅲ) content reached up to 9 6% was insoluble in most organic solvents. Its electric resistance was 1 25×10 5 MΩ(that of EPU was 7 90×10 4 MΩ). Its T g and thermal resistance was considerably greater than that of EPU.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.
基金This work is supported by the National Natural Science Foundation of China
文摘Urushiol polymer containing B-N bond (PUBN) was synthesized with urushiol-boron polymer and diethylene triamine. Its structure was characterized by XPS, IR, UV, HPLC, DTA-TG and elemental analysis. The physico-mechanical and anticorrosive properties of the polymer were also investigated. The results show that the coating of PUBN can be hardened in 2 h at room temperature and its film has excellent physico-mechanical properties and good anticorrosive properties.
基金This work is supported by the National Natural Science Foundation of China
文摘The synthetic method and structural characteristics of urushiol-titanium chelates (UT) and urushiol-titanium chelate polymer for anticorrosive coatings have been studied.Two kinds of coating films made from UT polymer show excellent physico-mechanical properties and possess good chemical resistance to strong acids and alkalis, many kinds of salt solutions and organic solvents, stable at high temperature.
文摘Title polymeric complex(EPU Eu(Ⅲ)) was obtained from triisobutoxy euro pium Eu(C 3H 7O) 3 with electropolyurushiol in isobutyl alcohol. The structure and property of the complex were characterized by FT IR, XPS, DMTA, AES, TG DTA and fluorescence spectrophotometry. The complex with Eu(Ⅲ) content reached up to 9 6% was insoluble in most organic solvents. Its electric resistance was 1 25×10 5 MΩ(that of EPU was 7 90×10 4 MΩ). Its T g and thermal resistance was considerably greater than that of EPU.
