[PDF] Top 20 Non-isothermal depolymerisation kinetics of poly(ethylene oxide)

... polyethylene oxide (PEO) can be identified as a polymer with a wide range of commercial, scientific and industrial uses including applications in cosmetics and pharmaceuticals [47] whose behaviour during thermal ... See full document

... As shown in Fig. 11 and 12, the crystallization behaviors of the pure PEAd and the nanoparticle- filled PEAd composites are not accurately fitted to the Ozawa equation because of the curvatures in the plots. It is well ... See full document

... crystallization nuclei, diffusion of gaseous reagents or reaction products materials heat conductance, static or dynamic character of the environment, physical state of the reagents – dispersity, layer thickness, ... See full document

... To date, three types of materials are used for the fabrication of BPs [3]: metals or metal-based materials, gra- phite, and polymer composites. Polymer-based materials are deemed to be excellent materials for BPs owing ... See full document

... crystallization behaves in a marked kinetic feature. This shift in the peak forms the basis for determination of the activation energy. Due to increase in the sensitivity, the peak height also increases with increasing ... See full document

... known to be one of the most efficient oxidants in several polymeric polymerizations (especially poly pyrrole) leaving chloride ion and hence making it conducting [5]. The Fe3+ ions are bound by the coordinating ... See full document

... The objective of this work was to extract sugar bagasse cellulose nanofibres by using three differ- ent processes, namely: mechanical fibrillation, bleaching and mild acid hydrolysis. Cellulose nano- fibres with ... See full document

... crystallization kinetics by non-isothermal analyses, the volume fraction x transformed at temperature T was assumed to be proportional to the heat ... See full document

... of paclitaxel-loaded nanoparticles was prepared by a desolvation procedure, crosslinked on the wall material of bovine serum albumin, and subsequently decorated by folic acid. The characteristics of the nanoparticles, ... See full document

... Curcumin is remarkably non-toxic and is well tolerated even at doses as high as 12 g/ day [33]. However, due to its hydrophobicity, water insolubility and first pass metabolism, it has poor oral bioavailability. ... See full document

... chitosan depolymerisation, and may be used to determine the role of other factors such as pH, light and chemical modification on stability, although this alone is not sufficient to make any conclusions about their ... See full document

... Abbreviations: Plga, poly(lactic- co -glycolic) acid; ISTPPLG4 NPs, insulin-loaded tocopherol poly(ethylene glycol) 1000 succinate-emulsified poly(ethylene glycol)-capped poly(lactic- [r] ... See full document

... composite structure were synthesized by the solution casting technique [61, 65]. In a particular experiment, 3.4 g of as-received polyvinylalcohol (PVA) was dissolved in 18 g of deionized water at room temperature under ... See full document

... Poly ethylene oxide has known to exhibit the property to solvate high concentration of ionic salts. The complexation of ionic salts with PEO has been the subject of active interest in polymer ... See full document

... The results indicste that the comvlex formed varies with pH and ionic strength over a very narrow range of conditions, and that the self association of the resin a n important part in th[r] ... See full document

... The non-isothermal melt and cold crystallization processes were investigated by DSC applying heating/cooling/reheating cycles (six different heating/cooling ... See full document

... TABLE OF CONTENTS Abstract List of Tables i List of Figures ii Chapter 1 : Introduction 1.1 Objective 1 1.2 PEO Overview 1 1.3 PVDF Overview 3 Chapter 2: Crystallization Kinetics: 2.1 Nu[r] ... See full document

... such as poly (ethylene glycol) [18]. Therefore, it may need other combinations of poly- mers, like PEO and Na-alg., to increase the density of fibers on the mesh produced, which is the case here. The ... See full document

... For isothermal calorimetry, batches containing 20 disk shaped samples of 15 mm diameter and 1 mm thickness were prepared and examined in a differential Tian-Calvet microcalorimeter which possesses an excellent ... See full document

... on poly (vinyl alcohol), poly (ethylene oxide), poly (ethyleneimine), poly (vinyl pyrrolidone), and poly-N-isopropylacrylamide have been reported with different ... See full document