Two polymeric adsorbents, poly(methyl p-vinylbenzyl ether) and poly(phenyl p-vinylbenzyl ether), were synthesized from chloromethylated polystyrene. Their adsorption property for phenol in hexane solution was investig...Two polymeric adsorbents, poly(methyl p-vinylbenzyl ether) and poly(phenyl p-vinylbenzyl ether), were synthesized from chloromethylated polystyrene. Their adsorption property for phenol in hexane solution was investigated. The results showed that the two adsorbents adsorb phenol from hexane solution through hydrogen-bonding and π-π stacking interaction.展开更多
The Adsorption property of tea polyphenols(TP) by self-made macroporous crosslinked Poly(p-vinylbenzyl succinimide) resin(which can be abbreviated to PMVBS resin) were carried out through the static adsorption equilib...The Adsorption property of tea polyphenols(TP) by self-made macroporous crosslinked Poly(p-vinylbenzyl succinimide) resin(which can be abbreviated to PMVBS resin) were carried out through the static adsorption equilibrium and the dynamic column adsorption.The results suggested that the adsorption isotherms of the PMVBS resin for TP could be fitted to Langmuir adsorption equation with the coefficients larger than 0.99,the saturated adsorption capacities was 265 mg/g,the dynamic breakthrough capacity was 197 mg/g resin(dry),and 85 % ethanol solution was a good elution,elution rate was about 95%.The tea infusion was adsorbed and purified by the column of PMVBS resin,the purity of TP was above 96 %,and reusability of the resin was better.展开更多
The new dithiocarbamate 4-vinylbenzyl 9H-carbazole-9-carbodithioate was synthesized and characterized by means of 1H NMR,elemental analysis,FT-IR,and X-ray crystallography.The crystal structure is of triclinic,space g...The new dithiocarbamate 4-vinylbenzyl 9H-carbazole-9-carbodithioate was synthesized and characterized by means of 1H NMR,elemental analysis,FT-IR,and X-ray crystallography.The crystal structure is of triclinic,space group Pī,with a=9.4301(19) nm,b=9.518(2) nm,c=10.541(2),α=83.909(16) °,β=77.279(13)°,γ=79.312(14) °,V=904.8(3) nm3,Z=2,F(000)=376,Dc=1.319 mg/ m3,final R1=0.0731,wR2=0.1615 for 10164 observed reflections with I> 2σ(I).The thermal stability of the title compound was also studied.The main released gas product of the thermal decomposition of the title compound were possibly nitrogen,carbon sulfide and hydrogen sulfide,and the final solid product was 14.5% carbon leavings.展开更多
基金the National Natural Science Foundation of China(No.29974015)the Visiting Scholar Foundation of Key Lab.In University for the financial support
文摘Two polymeric adsorbents, poly(methyl p-vinylbenzyl ether) and poly(phenyl p-vinylbenzyl ether), were synthesized from chloromethylated polystyrene. Their adsorption property for phenol in hexane solution was investigated. The results showed that the two adsorbents adsorb phenol from hexane solution through hydrogen-bonding and π-π stacking interaction.
文摘The Adsorption property of tea polyphenols(TP) by self-made macroporous crosslinked Poly(p-vinylbenzyl succinimide) resin(which can be abbreviated to PMVBS resin) were carried out through the static adsorption equilibrium and the dynamic column adsorption.The results suggested that the adsorption isotherms of the PMVBS resin for TP could be fitted to Langmuir adsorption equation with the coefficients larger than 0.99,the saturated adsorption capacities was 265 mg/g,the dynamic breakthrough capacity was 197 mg/g resin(dry),and 85 % ethanol solution was a good elution,elution rate was about 95%.The tea infusion was adsorbed and purified by the column of PMVBS resin,the purity of TP was above 96 %,and reusability of the resin was better.
文摘The new dithiocarbamate 4-vinylbenzyl 9H-carbazole-9-carbodithioate was synthesized and characterized by means of 1H NMR,elemental analysis,FT-IR,and X-ray crystallography.The crystal structure is of triclinic,space group Pī,with a=9.4301(19) nm,b=9.518(2) nm,c=10.541(2),α=83.909(16) °,β=77.279(13)°,γ=79.312(14) °,V=904.8(3) nm3,Z=2,F(000)=376,Dc=1.319 mg/ m3,final R1=0.0731,wR2=0.1615 for 10164 observed reflections with I> 2σ(I).The thermal stability of the title compound was also studied.The main released gas product of the thermal decomposition of the title compound were possibly nitrogen,carbon sulfide and hydrogen sulfide,and the final solid product was 14.5% carbon leavings.
