Through esterification of functionality —COOM on side chains of xanthan gum by 1-bromooctane,water soluble hydrophobically modified xanthan gums of octyl substitution 11 and 21 per 100 structural units,HMXG-C8-11 and-21,are prepared.

Research progress of hydrophobic modification of konjac glucomannan;

This paper talked in detail about the concept and the exhibition of hydrophobic association, the way for hydrophobic modification and the method to study the hydrophobic association.

Compared with the corn starch and the oxidized starch,the translucent rate of the hydrophobically modified starch dropped obviously,which indicates the molecules become bigger after hydrophobic modification.

Hydrophobic modification of starch is an important way for improving the applied properties of starch chemicals, endowing starch with novel performance and functionalities, and developing applied fields of starch chemicals.

All those feed stocks used in cosmetics were hydrophobic materials, or lipophilic components, and the feed stocks used in cosmetics were summarized here.

Study on polysiloxane in situ modification and its application of precipitated nm SiO_2;

Study on in situ modification of nanometer silicon bioxide by sol - gel;

Then the in situ modification was performed with tetraethylenepentamine(TEPA) on the surface of IniMs.