Abstract
Academic Journal of Polymer science (AJOP) is a Journal which publishes state-of-the-art overview articles by internationally recognized authorities in polymer science and engineering. It covers all the areas of particular interest are biomedical applications,
Highlights
Polystyrene (PS) is a multipurpose polymer used in varied applications in rigid and foamed forms
Isotactic or syndiotactic polystyrene prepared by metallocene catalyst can give heat distortion temperature (HDT)/vicat softening temperature (VST) around 250 oC and shows lowest specific gravity compared to any other engineering plastics in the market [1]
The excellent physical and processing properties make generalpurpose polystyrene (GPPS) suitable for many applications as compared to any other plastics, but its glass transition temperature (Tg) is only 100 oC that leads to limit its use in certain applications
Summary
Polystyrene (PS) is a multipurpose polymer used in varied applications in rigid and foamed forms. The first two are commercially not important due to complexity in the synthesis and processability compared to atactic polystyrene. Amides, maleimides and methylstyrenes have been explored as comonomers in different loading to enhance the heat resistance of polystyrene [4,5]. This is generally achieved by introducing heteroatom containing monomer in the polystyrene chain, which leads chemical irregularity or steric hindrance in the polystyrene chain. Good thermal properties like higher HDT/VST along with flow are important requirement for the product performance with better heat stability & shorter cycle time in the production line. Our research was focused in first instant to increase the Tg and HDT/VST, without affecting flow properties
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