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Polymer Science and Engineering

Glass transition

Exams

GATE XE

Years

2021

Subjects

Polymer Science and Engineering

Topics

Glass transition
Analysis of polymers using IR, XRD, thermal (DSC, DMTA, TGA), optical and electronic techniques
Biopolymers such as PLA, PHA/PHB
Choice of polymers for blending, blend miscibility-miscible and immiscible blends
Concept of intermolecular order (morphology)
Concept of molecular weight distribution and its significance
Copolymerization
Cross-linking and vulcanization
Crystalline transition
Different compounding ingredients for rubber and plastics and their function
Extrusion
Injection molding
Kinetics of polymerization
Measurements of rheological parameters by capillary rotating parallel plate, cone-plate rheometer
Melting transition
Molecular/segmental deformations at different zones and transitions
Natural and synthetic rubbers
Particulate, long and short fibre reinforced composites
Polymer Science
Polymer crystallinity
Polymer processing
Polymer reinforcement
Recycling of thermoplastics, thermosets and rubbers
Solubility and swelling
Techniques for polymerization
Thermodynamics
Twin screw extruder
Visco-elasticity- creep and stress relaxations
Viscosity and rheology
Vulcanization kinetics
X-ray Diffraction

List of top Polymer Science and Engineering Questions on Glass transition asked in GATE XE

When the rate of cooling is increased during the solidification process, the glass transition temperature of a polymer \(\underline{\hspace{2cm}}\).

GATE XE - 2021
GATE XE
Polymer Science and Engineering
Glass transition