PURPOSE The present study deals with evaluation of crosslinked poly vinyl alcohol (PVA) as a potential disintegrant. METHODS Crosslinking of PVA was carried out using glutaraldehyde as a crosslinker, in presence of acidic conditions. The crosslinking reaction was optimized for a) polymer: crosslinker ratio; b) temperature requirement and c) reaction duration. Certain physical parameters of th...

The thermal transformation of spin-cast thin films to produce nanoporous low-k dielectric layers has been investigated using polymethysilsesquioxane sPMSSQd for the low-k matrix and polymethylmethacrylate-co-dimethylaminoethylacrylate sPMMA-co-DMAEMAd as the porogen which is volatilized to leave nanopores in the matrix. Surface analysis methods, including time of flight-secondary ion mass spect...

Catechol chemistry is used as a crosslinking tool abundantly in both natural organisms (e.g. mussels, sandcastle worms) and synthetic systems to achieve the desired mechanical properties. Despite this abundance and success, the crosslinking chemistry is still poorly understood. In this study, to simplify the system, yet to capture the essential chemistry, model compounds 4-methyl catechol and p...

This paper deals with the development of acrylic latexes providing high-performance water-resistant coatings. For this purpose, mutual effects anionic surfactant type (ordinary and polymerizable), covalent intra- and/or interparticle crosslinking (introduced by allyl methacrylate copolymerization keto-hydrazide reaction, respectively) ionic (provided nanostructured ZnO additive) were investigat...

Two grades of metallocene-catalysed LLDPE and one grade of low-density polyethylene (LDPE) have been silane grafted and crosslinked by contact with water and their performance has been compared and evaluated. The effects of vinytrimethoxysilane (VTMOS) levels on the degree of crosslinking for each grade were also studied. It was found that increasing level of silane increases the degree of cros...

The aim of this study was to first evaluate whether the chitosan hydrochloride-genipin crosslinking reaction is influenced by factors such as time, and polymer/genipin concentration, and second, to develop crosslinked drug loaded microspheres to improve the control over drug release. Once the crosslinking process was characterized as a function of the factors mentioned above, drug loaded hydroc...

Chitosan is one of the promising compounds for use in various fields medicine. However, successful application, materials based on it must be insoluble water and have specified physical mechanical properties. In this work, we studied interaction N-methylolacrylamide (NMA) chitosan upon concentration solutions, both under action UV radiation without it, which results curing polymer matrix. The m...

In this study we prepared high grammage, robust, and structurally dense CNF (Cellulose nano fibrils) films with and without wet strength crosslinker KymeneTM (PAE, a polyamide-epichlorohydrin resin). Both selfcrosslink of PAE network and hetero crosslink between cellulose and PAE were formed at elevated temperature. Besides expected wet strength improvement, we also discovered unique stress-str...

In this study, it was aimed to synthesize and characterize a new polymeric cryogel system be formed with linoleic acid (PLina), vegetable oil-based fatty acid, the widely preferred 2-hydroxyethyl methacrylate (HEMA) monomer. cryogels. For purpose, firstly, autoxidation hydroxylation reactions were carried out for lineloic respectively. Hydroxylated (PLina-OH) HEMA monomer subjected cryogenic ge...