Council of Scientific and Industrial Research

Bhausaheb Vilas Tawade

Prakash Purushottam Wadgaonkar

Bhimrao Dhondiba Sarwade

Samadhan Suresh Nagane

Prakash Sudhir Sane

The application discloses monomers based on bisphenols with pendent reactive azido groups. The application further provides a process for preparation of bisphenol monomers with pendent reactive azido groups which are used further for preparing polymers with pendent reactive functional groups and graft copolymer.

2, 2'-bis (4-hydroxyphenyl) alkyl azides and process for the preparation thereof

A process for synthesis of sulfonated, arylated 3-pentadecyl phenol (cross linking catalyst) of formula I starting from Cashew Nut Shell Liquid. Formula I wherein R is benzenesulfonic acid; X is &#x2014;SO3H, where n is 0 or 1; wherein the process steps comprises hydrogenating cardanol with 5% Pd/C in presence of lower alcoholic solvent at 70&#xb0; C. under 600 psi hydrogen pressure to obtain 3-pentadecyl phenol; arylating 3-pentadecyl phenol to obtain 3-pentadecyl diphenyl ether; and sulfonating the 3-pentadecyl diphenyl ether to obtain compound of formula I.

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Bhausaheb Vilas Tawade