<?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%">Sharma, Vivek</style></author><author><style face="normal" font="default" size="100%">Paulbudhe, Uday</style></author><author><style face="normal" font="default" size="100%">Gupta, Poonam</style></author><author><style face="normal" font="default" size="100%">Zalte, Akshat Shirish</style></author><author><style face="normal" font="default" size="100%">Chikkali, Samir H.</style></author><author><style face="normal" font="default" size="100%">Kumaraswamy, Guruswamy</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Thermal properties of polyethylene-grafted sheetlike silsesquioxanes</style></title><secondary-title><style face="normal" font="default" size="100%">ACS Applied Polymer Materials</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">clay</style></keyword><keyword><style  face="normal" font="default" size="100%">Crystallization</style></keyword><keyword><style  face="normal" font="default" size="100%">Nanocomposite</style></keyword><keyword><style  face="normal" font="default" size="100%">Polyethylene</style></keyword><keyword><style  face="normal" font="default" size="100%">silsesquioxane</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2025</style></year><pub-dates><date><style  face="normal" font="default" size="100%">MAR</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">7</style></volume><pages><style face="normal" font="default" size="100%">4290-4300</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;
	Polyethylene-grafted layered silsesquioxanes, termed polyethylene-clays (PEC), are nanocomposites comprising polyethylene chains tethered to inorganic sheets with a phyllosilicate-like structure. Here, we report that these nanocomposites show two-stage crystallization on cooling, qualitatively different from previous reports on polyethylene nanocomposites. We employ differential scanning calorimetry (DSC) and small-angle X-ray scattering (SAXS) to study the melting and crystallization of PEC. End tethering of the polyethylene chains to a nanosheet strongly influences the manner in which PEC crystallizes from the melt on cooling. PEC exhibits two-step crystallization, characterized by a sharp high-temperature exotherm, followed by a broader exotherm at lower temperatures, in contrast to a single sharp exotherm for neat polyethylene. SAXS indicates that lamellar stacks form at high temperatures and that the low-temperature exotherm corresponds to the formation of additional lamellae and their insertion within these stacks. PEC exhibits lower peak melting temperature, lower crystallinity, and a wider melting range relative to polyethylene. We show that the progress of crystallization of PEC is determined by its ultraslow relaxation dynamics. In contrast, PEC in xylene solution exhibits a significantly shorter relaxation time than the melt PEC. Such systems exhibited a single exotherm on cooling and SAXS structure factor peaks with peak positions in a ratio of 1:2. We hypothesize that the high melt viscosity inhibits the crystallization-induced decrease in the specific volume of PEC, resulting in tensile internal stresses that determine the observed thermal behavior.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">7</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">&lt;p&gt;
	Foreign&lt;/p&gt;
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	4.7&lt;/p&gt;
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