A novel photosensitive prepolymer of trimethylolpropane triglycidylether triacrylate was synthesized by utilizing trimethylolpropane triglycidylether and acrylic acid as two starting materials, triphenyl phosphine as ...A novel photosensitive prepolymer of trimethylolpropane triglycidylether triacrylate was synthesized by utilizing trimethylolpropane triglycidylether and acrylic acid as two starting materials, triphenyl phosphine as catalyst and p-hydroxyanisole as inhibitor. The optimum synthesis conditions were that the concentration of triphenyl phosphine was 0.85wt% of reactants, the concentration of p-hydroxyanisole was 0.3wt% of reactants, and the reaction temperature was at 90-110 ℃. Benzil dimethyl ketal of a UV-cured initiator was added to the synthesized trimethylolpropane triglycidylether triacrylate to prepare a kind of UV-cured coating. The mechanical properties of the UV-cured films were determined, giving 28.43 MPa of tensile strength, 965.59MPa of (Young's) modulus and 4.10% of elongation at tear.展开更多
To improve the physiochemical properties of gellan gum（GG）, GG was modified with acrylamide and trimethylolpropane triglycidyl ether（TTE）. The structure and morphology of modified GG were characterized by Fourier ...To improve the physiochemical properties of gellan gum（GG）, GG was modified with acrylamide and trimethylolpropane triglycidyl ether（TTE）. The structure and morphology of modified GG were characterized by Fourier transform infrared（FT-IR） spectroscopy, X-ray diffraction（XRD）, differential scanning calorimetry（DSC） and scanning electron microscopy（SEM）. The characteristic peaks at 3448, 2788, 1654, 1411, 1117 and 1044 cm-1）in the FT-IR spectrum confirm the modification. The XRD and DSC data revealed that the modification enhanced the thermal stability of GG. SEM analysis suggested the modification introduced a porous microstructure, resulting in the adsorption of crystal violet. In addition, the adsorption capacity, thermal stability and swelling property of GGTTE3 were superior to GGTTE1, GGTTE2, GGTTE4 and GGTTE5.展开更多
文摘A novel photosensitive prepolymer of trimethylolpropane triglycidylether triacrylate was synthesized by utilizing trimethylolpropane triglycidylether and acrylic acid as two starting materials, triphenyl phosphine as catalyst and p-hydroxyanisole as inhibitor. The optimum synthesis conditions were that the concentration of triphenyl phosphine was 0.85wt% of reactants, the concentration of p-hydroxyanisole was 0.3wt% of reactants, and the reaction temperature was at 90-110 ℃. Benzil dimethyl ketal of a UV-cured initiator was added to the synthesized trimethylolpropane triglycidylether triacrylate to prepare a kind of UV-cured coating. The mechanical properties of the UV-cured films were determined, giving 28.43 MPa of tensile strength, 965.59MPa of (Young's) modulus and 4.10% of elongation at tear.
基金financially supported by the International Science and Technology Cooperation and Exchange Program of Fujian Agriculture and Forestry University(KXGH17001)
文摘To improve the physiochemical properties of gellan gum（GG）, GG was modified with acrylamide and trimethylolpropane triglycidyl ether（TTE）. The structure and morphology of modified GG were characterized by Fourier transform infrared（FT-IR） spectroscopy, X-ray diffraction（XRD）, differential scanning calorimetry（DSC） and scanning electron microscopy（SEM）. The characteristic peaks at 3448, 2788, 1654, 1411, 1117 and 1044 cm-1）in the FT-IR spectrum confirm the modification. The XRD and DSC data revealed that the modification enhanced the thermal stability of GG. SEM analysis suggested the modification introduced a porous microstructure, resulting in the adsorption of crystal violet. In addition, the adsorption capacity, thermal stability and swelling property of GGTTE3 were superior to GGTTE1, GGTTE2, GGTTE4 and GGTTE5.
