Polymers

Some articles on polymer, polymers:

Synthetic Biodegradable Polymer - Polymer Chemistry and Material Selection
... When investigating the selection of the polymer for biomedical applications, important criteria to consider are The mechanical properties must match the ... Mechanical performance of a biodegradable polymer depends on various factors which include monomer selection, initiator selection, process conditions and the presence ... These factors influence the polymers crystallinity, melt and glass transition temperatures and molecular weight ...
Mark–Houwink Equation
... From this equation the molecular weight of a polymer can be determined from data on the intrinsic viscosity and vice versa ... the Mark–Houwink parameters, and, depend on the particular polymer-solvent system ... For most flexible polymers ...
Strengthening Mechanisms Of Materials - Strengthening Mechanisms in Amorphous Materials - Polymer
... Polymers fracture via breaking of inter- and intra molecular bonds hence, the chemical structure of these materials plays a huge role in increasing strength ... For polymers consisting of chains which easily slide past each other, chemical and physical cross linking can be used to increase rigidity and yield strength ... In thermoset polymers (thermosetting plastic), disulfide bridges and other covalent cross links give rise to a hard structure which can withstand very high temperatures ...
Stabilizers For Polymers - See Also
... Chemically Assisted Degradation of Polymers Environmental stress cracking Indication of weather degradation Photo-oxidation process Thermal degradation of polymers ...
Stabilizers For Polymers
... Stabilizers for polymers are used directly or by combinations to prevent the various effects such as oxidation, chain scission and uncontrolled recombinations and cross-linking reactions ... Polymers are considered to get weathered due to the direct or indirect impact of heat and ultraviolet light ... weathering depends on solubility, ability to stabilize in different polymer matrix, the distribution in matrix, evaporation loss during processing and use ...