02036nas a2200205   4500008004100000245009800041210006900139300001200208520126600220100002701486700002801513700002301541700002101564700002601585700002301611700002101634700002101655700002801676856012601704       2017                        eng d00aStep-growth polymers from cashew nut shell liquid (CNSL)-based aromatic difunctional monomers0 aStepgrowth polymers from cashew nut shell liquid CNSLbased aroma  a163-2143 a<p>Cashew nut shell liquid (CNSL) is an attractive renewable resource material which is available in abundance (44,50,000 tonnes worldwide and 7,53,000 tonnes in India in 2013) at low cost (around 0.27 $/kg in 2015) and is mainly composed of anacardic acid, cardanol, cardol and 2-methyl cardol. Cardanol is obtained as a major product during hot oil extraction or roasting process of CNSL. Cardanol possesses interesting structural features. The aromatic ring of cardanol can undergo electrophilic substitution reactions; the unsaturated side chain can undergo epoxidation, hydrogenation, metathesis, etc., while the phenolic hydroxyl group can undergo various reactions such as esterification and alkylation. Such opportunities of chemical modifications offered by cardanol have been extensively explored to synthesise a range of interesting aromatic difunctional monomers that have subsequently been utilised to prepare a host of step-growth polymers. Summarised herein are research efforts that have contributed towards the synthesis of step-growth polymers based on aromatic difunctional monomers derived from cardanol. The properties of high-performance polymers, with a particular focus on processability and thermal characteristics, are highlighted.</p>1 aChatterjee, Deepshikha1 aSadavarte, Nilakshi, V.1 aShingte, Rahul, D.1 aMore, Arvind, S.1 aTawade, Bhausaheb, V.1 aKulkarni, Arun, D.1 aIchake, Amol, B.1 aAvadhani, C., V.1 aWadgaonkar, Prakash, P.  uhttps://library.ncl.res.in/content/step-growth-polymers-cashew-nut-shell-liquid-cnsl-based-aromatic-difunctional-monomers