Carbon nanotubes have stable structrue that is the similar to alkene.However,it is very difficult that carbon nanotubes have the same addition reaction as alkene.By infrared spectrum,it has been proved that there is a...Carbon nanotubes have stable structrue that is the similar to alkene.However,it is very difficult that carbon nanotubes have the same addition reaction as alkene.By infrared spectrum,it has been proved that there is addition reaction between carbon nanotubes and BPO.Moreover,we found,the frequency of carbonyl in BPO decreased from 1760-1780 cm-1to 1702 cm-1.It was also shown by TG the weight loss varied with reaction time and reagent proportion.展开更多
PS/MWNT composites have been prepared by supension polymerization.It was obvious that the yield of PS was lower for the addition of MWNT.GPC tests showed when the added amount of MWNT was smaller,the molecular weight ...PS/MWNT composites have been prepared by supension polymerization.It was obvious that the yield of PS was lower for the addition of MWNT.GPC tests showed when the added amount of MWNT was smaller,the molecular weight of PS was higher than that of pure PS for the volume effect of MWNT terminating PS chains.And when the added amount of MWNT was larger,the molecular weight of PS was lower than that of pure PS for the weaker activity of free radicals and interference of MWNT.展开更多
文摘Carbon nanotubes have stable structrue that is the similar to alkene.However,it is very difficult that carbon nanotubes have the same addition reaction as alkene.By infrared spectrum,it has been proved that there is addition reaction between carbon nanotubes and BPO.Moreover,we found,the frequency of carbonyl in BPO decreased from 1760-1780 cm-1to 1702 cm-1.It was also shown by TG the weight loss varied with reaction time and reagent proportion.
文摘PS/MWNT composites have been prepared by supension polymerization.It was obvious that the yield of PS was lower for the addition of MWNT.GPC tests showed when the added amount of MWNT was smaller,the molecular weight of PS was higher than that of pure PS for the volume effect of MWNT terminating PS chains.And when the added amount of MWNT was larger,the molecular weight of PS was lower than that of pure PS for the weaker activity of free radicals and interference of MWNT.
