Search results for "glass transition temperature"

showing 3 items of 3 documents

Donor and acceptor substituted triphenylamines exhibiting bipolar charge-transporting and NLO properties

2017

Donor-acceptor type triphenylamine-based malonodinitriles were synthesized and their thermal, optical, photophysical, electrochemical and nonlinear optical properties were studied. The synthesized compounds formed glasses with the glass transition temperatures ranging from 38 to 107 °C. The ionization potentials of the samples of the compounds established by cyclic voltammetry were found to be in the range of 5.50–5.57 eV, while those estimated by photoelectron emission spectrometry ranged from 5.36 to 5.74 eV. The electron affinity values of the compounds were found to be in the range of −3.41–−3.05 eV. The ambipolar charge-transporting properties were observed for the layers of triphenyla…

Materials scienceAmbipolarTriphenylamineGeneral Chemical EngineeringHyperpolarizability02 engineering and technology010402 general chemistryPhotochemistryTriphenylamine7. Clean energy01 natural scienceschemistry.chemical_compoundElectron affinityIonization:NATURAL SCIENCES:Physics [Research Subject Categories]Glass transition temperatureglass transition temperatureAmbipolar diffusionProcess Chemistry and TechnologyMalonodinitrile021001 nanoscience & nanotechnologyAcceptortriphenylamineambipolarSecond order hyperpolarizability0104 chemical scienceschemistrysecond order hyperpolarizabilityPhysical chemistrymalonodinitrileCyclic voltammetry0210 nano-technologyGlass transition
researchProduct

Cyclic moisture sorption and its effects on the thermomechanical properties of epoxy and epoxy/MWCNT nanocomposite

2019

The aim of this work was to reveal the moisture absorption&ndash

Materials sciencePolymers and Plasticsmultiwall carbon nanotubesCarbon nanotubeArticleepoxylaw.inventionlcsh:QD241-441lcsh:Organic chemistrylawmedicineRelative humidityglass transition temperatureComposite materialdynamic mechanical analysisNanocompositeMoisturecyclic moisture sorption:TECHNOLOGY::Materials science [Research Subject Categories]SorptionGeneral ChemistryEpoxyDynamic mechanical analysisvisual_artvisual_art.visual_art_mediumSwellingmedicine.symptom
researchProduct

Effect of Core–Shell Rubber Nanoparticles on the Mechanical Properties of Epoxy and Epoxy-Based CFRP

2022

This research was funded by M-Era.Net project MERF “Matrix for carbon reinforced epoxy laminates with reduced flammability” grant No. 1.1.1.5/ERANET/20/04 from the Latvian State Education Development Agency and M-Era.Net project “EPIC—European Partnership for Improved Composites“ funded by grant No. TH06020001. A.S., K.S. and A.Z. are grateful to funding received from the European Union Horizon 2020 Framework program H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART2.

tensile propertiescore–shell rubber nanoparticlesepoxy; CFRP; core–shell rubber nanoparticles; tensile properties; fracture toughness; glass transition temperatureGeneral Materials Science:NATURAL SCIENCES::Physics [Research Subject Categories]glass transition temperatureCFRPepoxyfracture toughness
researchProduct