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High performance polyurethane dispersion synthesized from plant oil renewable resources: A challenge in the green materials

10.1016/j.polymdegradstab.2018.02.014

2018-02-23

A series of hyperbranched polyesters were incorporated by the chemical reaction of the dimethylolpropionic acid with trimethylolpropane, pentaerythritol, and glycerol as the core group. The castor oil-based fatty acids were also successfully prepared in order...

Influence of atmospheric pressure dielectric barrier discharge on wettability and drying of poly(ether-ether-ketone) foils

10.1016/j.polymdegradstab.2018.02.016

2018-02-22

Wettability and water droplet drying dynamics on poly(ether-ether-ketone) (PEEK) foils treated by atmospheric pressure air dielectric barrier discharge (DBD) has been investigated. It has been found that plasma treatment causes significant increase of PEEK we...

Study on the oxidative stabilization of polyacrylonitrile fibers by microwave heating

10.1016/j.polymdegradstab.2018.02.017

2018-02-21

A microwave heating method was used for oxidative stabilization of polyacrylonitrile (PAN) fibers. The bulk density, chemical structure (FTIR), crystalline structure (WAXD), and skin-core structure were studied. The results show that the intermolecular cycliz...

Miscibility and degradation of polymer blends based on biodegradable poly(butylene adipate-co-terephthalate)

10.1016/j.polymdegradstab.2018.01.023

2018-02-21

The aim of this work is to analyse the effect of the preparation method on the miscibility of poly(butylene adipate-co-terephthalate) (PBAT) and poly(hydroxy ether of bisphenol A) (PH) blends and to provide a better understanding on the effect of a non-degrad...

Microscopic structural changes during photodegradation of low-density polyethylene detected by Raman spectroscopy

10.1016/j.polymdegradstab.2018.02.010

2018-02-19

Raman spectroscopy has been used to reveal the microscopic structural changes of low-density polyethylene under ultraviolet irradiation. The fraction of non-crystalline consecutive trans chains (the molecular chains in the trans conformation separate from the...

The effect of crystalline phase (anatase, brookite and rutile) and size on the photocatalytic activity of calcined polymorphic titanium dioxide (TiO2)

10.1016/j.polymdegradstab.2018.02.008

2018-02-17

The effect of thermal treatment on the morphology (crystalline phase and size) and photocatalytic activity of freshly prepared TiO2 nano-powder is communicated. TiO2 nano-powders, prepared by hydrolyzing titanium tetraisopropoxide at room temperature, were al...

Thermal, thermo-oxidative and thermomechanical degradation of PLA: A comparative study based on rheological, chemical and thermal properties

10.1016/j.polymdegradstab.2018.02.011

2018-02-16

This research studies the effect of thermal, thermo-oxidative and thermomechanical degradation conditions on the melt rheological, chemical and thermal properties of PLA at temperatures around its normal processing temperature. Thermal and thermo-oxidative de...

Effect of sodium hypochlorite exposure on polysulfone recycled UF membranes and their surface characterization

10.1016/j.polymdegradstab.2018.02.012

2018-02-16

The present work aims to investigate the effect of chlorine on the surface of the polysulfone (PSF) layer uncovered in the transformed ultrafiltration (UF) membranes (recycled from end-of-life reverse osmosis (RO) membranes). With this purpose, 6 end-of-life ...

Hydrolytic degradation kinetics of bisphenol E cyanate ester resin and composite

10.1016/j.polymdegradstab.2018.02.009

2018-02-16

Cyanate ester resin systems offer promise for many high-temperature polymer applications, but the potential for many applications is limited due to hydrolytic degradation of the cured polymer network, which can blister the resin, decrease its cross-linking de...

Preparation of a novel polysiloxane and its synergistic effect with ammonium polyphosphate on the flame retardancy of polypropylene

10.1016/j.polymdegradstab.2018.02.007

2018-02-14

A novel polysiloxane (APID) containing phosphorus, nitrogen and benzene rings was synthesized as a flame retardant, which is hydrophobic and thermally stable in air (residual weight being 46.1 wt.% at 800 °C). APID is synergistic with ammonium polyphosphate (...