A novel barium(Ⅱ) p-sulfonatothiacalix[4]arene complex has been structurally authenticated by X-ray diffraction studies and reveals that the barium(Ⅱ) ion is coordinated by the oxygen atoms of sulfonato group in thiacalix[4]arene, and also ligated by oxygen atoms of water in crystal lattice, which results in one-dimensional polymer.

Experiment on the technique of sulfonation of semi-chemical pulping black liquor as a water reducing agent;

Some discussions on the reform of sulfur trioxide sulfonation technology;

Research and development of liquid sulfur trioxide sulfonation;

The properties and applications of sulfonated poly ether ether ketone;

Application of sulfonated β-cyclodextrin in fragrance finishing for wool fabric;

A series of sulfonated poly(ether ether sulfone)(SMPEES) copolymers were synthesized via the aromatic nucleophilic polycondensation of disodium 3,3′-disulfonate-4,4′-dichlorodiphenylsulfone(SDCDPS),4,4′-dichlorodiphenylsulfone(DCDPS) and o-methylhydroquione.

This paper presents a synthesis of 1-naphthylamine-5-sulfonate Acid new method:1-naphthylamine for raw materials,step by sulfonation reaction in 1-naphthylamine-5-sulfonate,product purity greater than 95%,the yield was 45% with good quality and fewer reaction steps advantages.

00?g Resorcinol was sulfonated by 60.

Sulphonating Process Optimization for white Oil Plant;

Contrasted the mutual relations between the sulphonating depth, sulphonating time and the conductivity of per weight unit.

In this paper,the production of PTSA with the improved sulphonating method is presented.

Building sulphonation units of resources economy and availing environment;

Development trend of sulphonation technology and sulphonated products;

STUDIES ON THE PREPARATION OF STRONG ACIDIC-WEAK BASIC AMPHOTERIC ION EXCHANGE FIBERS II-the sulphonation and adsorption properties;