The Influence of Sulfation on the Conformation and Biological Activity of Polysaccharides from Pleurotus citrinopileatus;

It is found that the catalytic activities are greatly enhanced after sulfation.

It was indicated that three Na-MCS exhibited essentially the same substitution pattern with the reactivity in the order of C6>C2>C3,among which,however,the degree of sulfation is different.

The oil was modified by a series of reaction,such as ester--exchangereaction and sulfating sulphated.

The paper introduces the chemical reaction principle and working characteristics of lead-acid battery,analyzes phenomenon and reason of battery sulfating,gives steps of processing sulfation,and points out prevention method.

Sulfated diesters as anionicfatliquoring was synthesized, which was esterified by the industrial oleic acid andglycol, then sulfated by vitriol oil.

So sulfated modification AMP by chlorosulfonic acid–pyridine method and three sulfated polysaccharide S1-AMP、S2-AMP、.

Cooking-oil(hotel) was sulfated firstly,then mixed four kinds of fatliquors with waste engine oil,alkyl sulfonamide according to different proportions,and the applicable properties were tested.

The oil was modified by a series of reaction, such as ester -exchange reaction, sulphation and sulfition.