Macroreticular bead PAN/PVC IPN resins with cyano and chloro groups were synthesized by interpenetrating polymerization of acrylonitrile, or acrylonitrile and divinylbenzene into a macroporous polyvinyl chloride bead....Macroreticular bead PAN/PVC IPN resins with cyano and chloro groups were synthesized by interpenetrating polymerization of acrylonitrile, or acrylonitrile and divinylbenzene into a macroporous polyvinyl chloride bead. The composition and structure of the bead IPN resins have been investigated by means of FT-IR, NMR, SEM, mercury porosimetry and elemental analysis. During the process of interpenetrating polymerization, the chain propagation obeys Bernoullian statistical law, and no grafting polymerization has been observed. The content of cyano group in the resulting IPN resins can be adjusted by the amount of acrylonitrile added. The morphology of the IPN resins basically resembles that of the polyvinyl chloride bead, whereas the pore structures vary to a certain degree展开更多
Ni-plated glass beads（GB） was obtained by electroless plating, based on PVC adhesive, Niplated GB/PVC composite was prepared. Temperature insulation, fi re retardation and microwave absorption properties were tested...Ni-plated glass beads（GB） was obtained by electroless plating, based on PVC adhesive, Niplated GB/PVC composite was prepared. Temperature insulation, fi re retardation and microwave absorption properties were tested, the results showed that the nickel coating was compact and continuous, Ni-plated GB/ PVC composite is a kind of excellent temperature insulated, fi re retardate and light-weight material, and especially for microwave absorption well; Refl ectivity was lower than-2 dB in the frequency range of 11-17 GHz.展开更多
The PVC series of macroporous sulfonic cation-exchange resins were prepared by thesulfonation of a macroporous PVC bead with concentrated sulfonic acid or chlorosulfonicacid, the resulting sulfonic resin was employed ...The PVC series of macroporous sulfonic cation-exchange resins were prepared by thesulfonation of a macroporous PVC bead with concentrated sulfonic acid or chlorosulfonicacid, the resulting sulfonic resin was employed in the investigation of catalyticesterification and softening of water The results show that the yields of esters reach60.0-84.4% according as different fatty acids and alcohols, the refractive indexes of estersobtained resemble those reported in the references basically, meanwhile, 345L softenedwaler which holds 0.06mmol/L hardness would be prepared by 1 L wet sulfonic resinreusing for 4 times. The resulting sulfonic resins would have 1.6-2.0 or 2.5-3.0mmol/gexchange capacity by using concentrated sulfonic acid or chlorosulfonic acid assulfonating agent, respectively The sulfonic resin has a macroporous structure taking themorphology with agglomerates of minutely spherical gel particles as characteristic.展开更多
基金Supported by the Science Fund of the State Education Commission of China.
文摘Macroreticular bead PAN/PVC IPN resins with cyano and chloro groups were synthesized by interpenetrating polymerization of acrylonitrile, or acrylonitrile and divinylbenzene into a macroporous polyvinyl chloride bead. The composition and structure of the bead IPN resins have been investigated by means of FT-IR, NMR, SEM, mercury porosimetry and elemental analysis. During the process of interpenetrating polymerization, the chain propagation obeys Bernoullian statistical law, and no grafting polymerization has been observed. The content of cyano group in the resulting IPN resins can be adjusted by the amount of acrylonitrile added. The morphology of the IPN resins basically resembles that of the polyvinyl chloride bead, whereas the pore structures vary to a certain degree
基金Funded in Part by the National Key Technology Research and Development Program of the Ministry of Science and Technology of China(No.2011BAC10B05)
文摘Ni-plated glass beads（GB） was obtained by electroless plating, based on PVC adhesive, Niplated GB/PVC composite was prepared. Temperature insulation, fi re retardation and microwave absorption properties were tested, the results showed that the nickel coating was compact and continuous, Ni-plated GB/ PVC composite is a kind of excellent temperature insulated, fi re retardate and light-weight material, and especially for microwave absorption well; Refl ectivity was lower than-2 dB in the frequency range of 11-17 GHz.
文摘The PVC series of macroporous sulfonic cation-exchange resins were prepared by thesulfonation of a macroporous PVC bead with concentrated sulfonic acid or chlorosulfonicacid, the resulting sulfonic resin was employed in the investigation of catalyticesterification and softening of water The results show that the yields of esters reach60.0-84.4% according as different fatty acids and alcohols, the refractive indexes of estersobtained resemble those reported in the references basically, meanwhile, 345L softenedwaler which holds 0.06mmol/L hardness would be prepared by 1 L wet sulfonic resinreusing for 4 times. The resulting sulfonic resins would have 1.6-2.0 or 2.5-3.0mmol/gexchange capacity by using concentrated sulfonic acid or chlorosulfonic acid assulfonating agent, respectively The sulfonic resin has a macroporous structure taking themorphology with agglomerates of minutely spherical gel particles as characteristic.
