Aromatic sulfonated diester monomer, process to synthesize, poly

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate

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528171, 528180, 528194, 528293, 528295, 528373, 528487, C08G 6368, C08K 324, C08L 6702

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056749686

ABSTRACT:
A sulfonated dicarboxylic acid and a diaromatic carbonate are reacted by a solution process to form a sulfonated aromatic diester such as dipbenyl sodium 5-sulfoisophthalate. The sulfonated aromatic diester is reacted with an aromatic polymer precursor mixture such as bisphenol A and diphenyl carbonate, polymer or combination thereof, at a temperature above the melting point of the polymer or a member of the aromatic polymer precursor to form a randomly positioned sulfonated aromatic moiety in a polymer chain of a thermoplastic non-crosslinked aromatic polymer such as a linear polycarbonate.

REFERENCES:
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patent: 5097005 (1992-03-01), Tietz
patent: 5227456 (1993-07-01), Shepherd et al.
Degee et al., Synthesis and Characterization of Halato-Telechelic Bisphenol-A Polycarbonates, Polymer, vol. 35, No. 2, pp. 371-376 (1994).

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