Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Immiscible polymer blends"”.
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Compatibilisation and stabilisation of immiscible polymer blends by reactive processing
… synthetic routes for production of PP/EPDM copolymers for the purpose of compatibilisation of PP/EPDM blends. The MA-functionalisation was achieved using an internal mixer in the presence of low concentrations (less than 0.01 molar ratio) of a free radical initiator. Various methods were used …
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Cost-effective processing of immiscible polymer blends into value-added fiber-based products
… provides a motivation to study how to process immiscible polymer blends into value-added fiber-based products without using compatibilizers, which, on the other hand, are also helpful for the development of new polymer blend products. In this thesis study, we adopt a “nearly co-continuous …
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Creation of crosslinkable interphases in polymer blends by means of novel coupling agents
… for the modification of interface in immiscible polymer blends, which determine to a large degree of the blend properties. For this purpose novel coupling agents (named SCA) containing 2-oxazoline, 2-oxazinone, and hydrosilane reactive sites have been prepared. In blends of amino- …
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Development of Methods to Predict and Enhance the Physical Stability of Hot Melt Extruded Solid Dispersions
… celecoxib, fenofibrate and carbamazepine and two polymeric matrices EUDRAGIT® EPO and Kollidon® VA 64 were formulated by hot melt extrusion and spin coating into solid dispersions. A series of physicochemical characterisation techniques including MTDSC, PXRD, SEM, ATR-FTIR and AFM-LTA were used to …
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Reactive modification of polyesters and their blends
… end groups. Reactive blending of PP/UP blends through peroxide modification gave finer and more uniform morphology than unreacted blends and at a given PP/UP weight ratio more thermoplastic elastomers-like rheological behavior. This is due to the continuously decreasing viscosity ratio …
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Chemical effects in cluster SIMS depth profiling of polymer-based materials
… played by chemistry in the in-depth analysis of polymer-based materials, the importance of which has become relevant with the introduction, in secondary ion mass spectrometry, of cluster ion sources. While the introduction of cluster-SIMS represented a real breakthrough in the possibility of …
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Microporous polymeric membranes via melt processing
Novel ultraporous and microporous membranes from immiscible polymer blends were produced via melt processing and post-extrusion treatments. Polystyrene (PS)/polypropylene (PP) and poly(ethylene terephthalate) (PET)/polypropylene (PP) blend systems with different rheological properties were studied. …
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Development of an efficient finite volume computational platform for the simulation of complex flows of complex fluids governed by the Rolie-Poly model
… of such fluids. Examples of these include polymeric liquids (both solutions and melts), immiscible polymer blends, emulsions, suspensions of rigid and deformable particles (such as biological cells, capsules or lipid vesicles) and colloidal dispersions. Polymer melts are a category of …
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Investigation of mixing in the melting regime during polymer compounding
… in the melting regime during compounding of immiscible polymer blends. where most of the size scale reduction occurs. is studied. Starting from an initial solid pellet mixture of two components. the progression to the final two-phase viscoelastic melt involves an intermediate stage where …
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Regioselective Design of Polysaccharide Ester Graft Copolymers
Polysaccharide graft (co)polymers, where a polysaccharide comprises the backbone and a separate (co)polymer comprises grafted side chains, are growing in popularity as blend compatibilizers, sustainable elastomers, self-assembling materials, and drug delivery components. This popularity is …