<?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%">Gupta, Nivika R.</style></author><author><style face="normal" font="default" size="100%">Torris, Arun A. T.</style></author><author><style face="normal" font="default" size="100%">Wadgaonkar, Prakash P.</style></author><author><style face="normal" font="default" size="100%">Rajamohanan, P. R.</style></author><author><style face="normal" font="default" size="100%">Ducouret, Guylaine</style></author><author><style face="normal" font="default" size="100%">Hourdet, Dominique</style></author><author><style face="normal" font="default" size="100%">Creton, Costantino</style></author><author><style face="normal" font="default" size="100%">Badiger, Manohar V.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Synthesis and characterization of PEPO grafted carboxymethyl guar and carboxymethyl tamarind as new thermo-associating polymers</style></title><secondary-title><style face="normal" font="default" size="100%">Carbohydrate Polymers</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Carboxymethyl guar</style></keyword><keyword><style  face="normal" font="default" size="100%">Carboxymethyl tamarind</style></keyword><keyword><style  face="normal" font="default" size="100%">Pluronics</style></keyword><keyword><style  face="normal" font="default" size="100%">Rheology</style></keyword><keyword><style  face="normal" font="default" size="100%">Solution behavior</style></keyword><keyword><style  face="normal" font="default" size="100%">Thermo-associating polymers</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2015</style></year><pub-dates><date><style  face="normal" font="default" size="100%">MAR</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">ELSEVIER SCI LTD</style></publisher><pub-location><style face="normal" font="default" size="100%">THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND</style></pub-location><volume><style face="normal" font="default" size="100%">117</style></volume><pages><style face="normal" font="default" size="100%">331-338</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;New thermo associating polymers were designed and synthesized by grafting amino terminated poly(ethylene oxide-co-propylene oxide) (PEPO) onto carboxymethyl guar (CMG) and carboxymethyl tamarind (CMT). The grafting was performed by coupling reaction between-NH2 groups of PEPO and -COOH groups of CMG and CMT using water-soluble EDC/NHS as coupling agents. The grafting efficiency and the temperature of thermo-association, T-assoc in the copolymer were studied by NMR spectroscopy. The graft copolymers, CMG-g-PEPO and CMT-g-PEPO exhibited interesting thermo-associating behavior which was evidenced by the detailed rheological and fluorescence measurements. The visco-elastic properties (storage modulus, G'; loss modulus, G'') of the copolymer solutions were investigated using oscillatory shear experiments. The influence of salt and surfactant on the T-assoc was also studied by rheology, where the phenomenon of ``Salting out'' and ``Salting in'' was observed for salt and surfactant, respectively, which can give an easy access to tunable properties of these copolymers. These thermo-associating polymers with biodegradable nature of CMG and CMT can have potential applications as smart injectables in controlled release technology and as thickeners in cosmetics and pharmaceutical formulations. (C) 2014 Elsevier Ltd. All rights reserved.&lt;/p&gt;</style></abstract><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;</style></custom3><custom4><style face="normal" font="default" size="100%">4.219</style></custom4></record><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%">Tiwari, Neha</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Shedge, Aarti</style></author></secondary-authors><tertiary-authors><author><style face="normal" font="default" size="100%">Fayis, K. P.</style></author></tertiary-authors><subsidiary-authors><author><style face="normal" font="default" size="100%">Bhat, Suresh K.</style></author><author><style face="normal" font="default" size="100%">Ravindranathan, Sapna</style></author><author><style face="normal" font="default" size="100%">Rajamohanan, P. R.</style></author><author><style face="normal" font="default" size="100%">Badiger, Manohar V.</style></author></subsidiary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Thermo thickening behavior of MPEG-b-PCL grafted poly(acrylic acid): a molecular insight</style></title><secondary-title><style face="normal" font="default" size="100%">Polymer</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Hydrophobically modified poly (acrylic acid)</style></keyword><keyword><style  face="normal" font="default" size="100%">Light scattering</style></keyword><keyword><style  face="normal" font="default" size="100%">Methoxy polyethylene glycol-b-polycaprolactone (MPEG-b-PCL) copolymer</style></keyword><keyword><style  face="normal" font="default" size="100%">Rheology</style></keyword><keyword><style  face="normal" font="default" size="100%">Thermo gelation</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style  face="normal" font="default" size="100%">JUL</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">148</style></volume><pages><style face="normal" font="default" size="100%">138-148</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;We report on the synthesis and characterization of a new thermothickening polymer (PAA-g-(MPEG-b-PCL)) based on the grafting of a block copolymer of mono methoxy poly (ethylene glycol)–b-poly (caprolactone) (MPEG-b-PCL) onto poly (acrylic acid) (PAA). Rheological experiments reveal that aqueous solutions of PAA-g-(MPEG-b-PCL) exhibit interesting irreversible thermothickening behavior above a certain polymer concentration and critical temperature. Light scattering experiments show that increasing temperature induces hydrophobic associations and subsequent aggregation leading to gel formation which is irreversible. The mechanism of thermo thickening was examined at the molecular level by NMR methods which indicated unassembled and assembled environments of the MPEG-b-PCL grafts. On heating, interactions between the graft side chains are significantly enhanced and molecular mobility in the assembled microdomains is reduced. The stable well ordered microdomains that are formed on heating are retained on cooling thus, leading to irreversible gelation.&lt;/p&gt;</style></abstract><work-type><style face="normal" font="default" size="100%">Journal Article</style></work-type><custom3><style face="normal" font="default" size="100%">&lt;p&gt;Foreign&lt;/p&gt;</style></custom3><custom4><style face="normal" font="default" size="100%">&lt;p&gt;3.684&lt;/p&gt;</style></custom4></record></records></xml>