~1H─NMR内标法测定含氢硅油的含氢量

THE HYDROGEN AMOUNT OF POLYHYDROSI LOXANEDETER MINED BY ￣1H-NMR WITH INTERNAL STANDARD

利用Ｈ—ＮＭＲ内标定量法测定含氢硅油的硅质子含量．并将该方法与Ｈ—ＮＭＲ上接定量法进行了比较，用化学法进行了验证．

A new method has been studied to dctrmine the amount ofsilicon-hydrogon of polyhydrosiloxane by H-NMR quantitatine measunement. with internal standard, its condition selectity, and accuracy calculation.The method has been compared with H-NMR direct quantitatine measunement, aswell as with the chemical method.H-NMR quantitatine measurement with internal standard is as follws: H-Naclear magnetic resonation;Solvent : deuteriobenzene(C6D6) -Intornal standard: dioxane(C4H6O8)'The method overcomes the limition of H-NMR dinect quantitative measurement itcan be used for determining either mechyl-polyhydrosiloxane-or insert-polyhyolrosiloxaneor othors .The method is sample, fast and accurate.The biggost relating error is below ± 3.5%