<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Talanikar, Aniket A.</style></author><author><style face="normal" font="default" size="100%">Bhong, Sahil T.</style></author><author><style face="normal" font="default" size="100%">Nagane, Samadhan S.</style></author><author><style face="normal" font="default" size="100%">Wadgaonkar, Prakash P.</style></author><author><style face="normal" font="default" size="100%">Rashinkar, Gajanan S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Synthesis and characterization aromatic copolyesters bearing pendant norbornenyl groups</style></title><secondary-title><style face="normal" font="default" size="100%">High Performance Polymers</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">aromatic (co)polyesters</style></keyword><keyword><style  face="normal" font="default" size="100%">glass-transition temperature (Tg)</style></keyword><keyword><style  face="normal" font="default" size="100%">interfacial polycondensation</style></keyword><keyword><style  face="normal" font="default" size="100%">norbornenyl groups</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2026</style></year><pub-dates><date><style  face="normal" font="default" size="100%">MAY</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">38</style></volume><pages><style face="normal" font="default" size="100%">254-263</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;
	4, 4'-(Bicyclo (2.2.1) hept-5-en-2 yl methylene) bis (2-methoxyphenol) (BPA-NB) was polymerized via phase transfer catalyzed interfacial polycondensation with an equimolar mixture (50:50 mol %) of isophthaloyl chloride (IPC) and terephthaloyl chloride (TPC) to obtain aromatic copolyester bearing pendant norbornenyl groups (PES-NB). Furthermore, three different compositions of BPA-NB and bisphenol A (BPA) were polycondensed with IPC to obtain a series of copolyesters. 1H NMR spectroscopy confirmed the chemical structure and compositions of PES-NBs. Inherent viscosity and number-average molecular weight values of PES-NBs were in the range 0.82 to 1.06 dLg-1 and 63,600 to 95,300 gmol-1, respectively, indicating the formation of polymers of reasonably high molecular weights. PES-NBs readily dissolved in common organic solvents such as chloroform, dichloromethane, and tetrahydrofuran, and tough, transparent, flexible films could be cast from their chloroform solutions. X-Ray diffraction studies indicated amorphous nature of PES-NBs. Glass transition temperature (Tg) values of PES-NBs were in the range 215 to 195 degrees C and Tg values increased with the increase in mol % of BPA-NB.&lt;/p&gt;
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