|
Molecular formula : MW : CAS :
nature : polymer in the glass transition temperature by forcing over by the high-elastic deformation. Drawing to a greater extent will not fracture. Yes glass polymer characteristics of the polymer chain by force from outside. Remove the outside, the chain still in a state of elongation, not restitution, only elevated temperature above the glass transition temperature, can be gradually restitution.
Notice:Each item can have many explanations from different angels. If you want grasp the item comprehensively,please see below "more details data". |