glass transition (polymers)
Primary alkylphosphine–borane polymers: Synthesis, low glass transition temperature, and a predictive capability thereof
... In this study the synthesis, characterisation, and thermal stability of a new family of primary alkyl phosphine-borane polymers is reported (Figure 1). These are the first phosphine-borane polymer derivatives ...
32
Glass transition temperature of thermoplastic starches
... synthetic polymers, the starch plastics can be manufactured as a sup- plement to the existing synthetic ...high glass transition temperature (T g ) (De Graaf et ...
5
A Study of Glass Transition Kinetics of Te 15
... The glass transition temperature has been found to increase with heating rate and with Sb addition to Se-Te ...of glass transition has been found to increase with Sb addition in both Kissinger ...
7
The Structural Bases for Polymer Glass-Transition Temperatures.
... 1.1.1 Viscosity Consequence: Relaxation time reaches experimental time scale Cooling of liquids, polymer melts or small molecule liquids, decreases their spe- cific volume and increases their viscosity. As it is cooled ...
165
Kinematical Studies of the Glass Transition in Glassy (Bi2Se3)1-X Tex System
... The prepared solid solution in powder form has been used thermal analysis using the Differential Thermal Analysis (DTA). This material was first sealed in a standard aluminium pan and the calorimetric thermograms of ...
6
Topologically disordered systems at the glass transition
... A glass is most commonly formed by cooling a viscous liquid fast enough to avoid ...liquid- glass transition is often regarded as a transition for practical purposes rather than a ...
15
Primary alkylphosphine–borane polymers: Synthesis, low glass transition temperature, and a predictive capability thereof
... the glass transition; as well as being able to vibrate normal to the chain axis the polymer chains can start to move translationally relative to each ...The glass transition temperature is ...
30
A topologically driven glass in ring polymers
... ring polymers become irreversibly trapped in a network of inter-coil constraints (threadings) which, in the limit of long rings, allows us to drive a kinetically arrested state with only a small fraction of ...
14
Controlling the Morphology of Composite Latex Particles, Douglas Holmes
... different polymers within the same latex particles to form a composite latex ...the glass transition temperature of the second polymer, or second stage, while keeping the glass ...
7
Infrared transmitting glasses with high glass transition temperatures
... chalcogenide glass capable of infrared transmission which is either sulfur, selenium or tellurium based and consists of compositions of the formula ...the glass with the result being that excellent high ...
6
Synthesis and Characterization of Ionic Liquid Monomers and Polymers Derived from 2-substituted-1,3-dialkyl-4(5)-vinylimidazolium salts
... Glass transition data was gathered using a TA Instruments DSC 2010 with attached refrigerated cooling system under a nitrogen atmosphere. All samples were prepared, in an inert atmosphere, by placing the ...
44
Thermal Stability and Glass Forming Ability of Li+ Ion Conducting Glasses
... and thereafter no appreciable weight loss has been noticed in the sample due to formation of stable compound. In all samples, the DTA profile shows endothermic peak at 350K which is attributed to partial melting of small ...
5
Effect of Yttrium Addition on Thermal Stability and Glass Forming Ability in Fe TM (Mn, Mo, Ni) B Ternary Alloys
... (glass transition and crystallization) was investigated using differential scanning calorimetry (DSC, Perkin-Elmer DSC7) during heating at various heating rates between ...
6
Well-defined networks from DGEBF - the importance of regioisomerism in epoxy resin networks
... The combined measurements suggest that the e ff ectiveness of network packing is in fl uenced by the amount of ortho-/para- substitution. They suggest that a well-packed network is formed by ppDGEBF because it has the ...
8
The influence of the annealing mode on stress elimination in the foam glass structure
... foam glass during the annealing process has a different effect on the formation of its stress-strain state, which allows us to conclude that different values of the rate of temperature change at different stages ...
18
Direct Comparison between Critical Cooling Rate and Some Quantitative Parameters for Evaluation of Glass Forming Ability in Pd Cu Ni P Alloys
... reduced glass transition temperatures were applied for evaluating the glass-forming ability of Pd-based metallic ...reduced glass transition temperature by liquidus temperature rather ...
5
Prominent spectral features of Sm3+ ion in disordered zinc tellurite glass
... 637–653 cm 1 and 759–774 cm 1 respectively. Thermal properties such as the temperature for glass transition, crystallisation and melting, stability and glass forming ability are determined from DTA ...
5
To Study the Trends of Activation Energy in Metal Extractions Process
... the glass transition region which determined from the heating rate dependence of the glass transition temperature Tg or the cooling rate dependence of the limiting fictive temperature T′f ...
6
Formation and characterization of bulk metallic glasses
... 5.1 Some bulk and thick glass forming alloy compositions, their reduced glass transition temperature TW and critical cooling rates T ,... Chapter 1:.[r] ...
180
Structural Studies of Some Borate Glasses Using Spectroscopy Technique
... the glass samples (BBM5 and BBM20), which are characteristic of glass transition temperature (T g ) region followed by a single exothermic peak at high temperature and is ...
6