In polystyrene, tacticity describes the extent to which the phenyl team is uniformly aligned (arranged at one facet) while in the polymer chain. Tacticity has a powerful effect on the Attributes of the plastic.การตอบโต้สถานการณ์ฉุกเฉินสารเคมีรั่วไหล합성섬유는 흔히
PS foams also exhibit great damping Attributes, hence it's applied widely in packaging. The trademark Styrofoam by Dow Chemical Corporation is informally applied (primarily US & copyright) for all foamed polystyrene products and solutions, Though strictly it must only be useful for "extruded shut-mobile" polystyrene foams made by Dow Chemical compo