MD simulation studies focusing on subcontinuum heterogeneities in polymers from the perspective of their mechanical properties. The theoretical framework for rationally distributing the stress tensor to individual molecular components is revisited, and the key achievements made via this approach are summarized...
The construction of photoresponsive polymers are generally achieved either by physically blending well-known photoresponsive molecules in polymer matrices or by chemically incorporating photoresponsive units into polymer side chains or main chains via different polymerization techniques4. Among them, step-growth...
What are Polymers? Understand Polymerization Reactions with Classification, Structure, Types, Properties and Uses of polymers. Learn to find the Molecular Mass of polymers with examples.
ranging in the thousands and even millions ofatomic massunits (as opposed to the tens of atomic mass units commonly found in other chemical compounds). The size of the molecules, together with their physical state and the structures that they adopt, are the principal causes of the unique prope...
In this article, the major commercially employed polymers are divided by thecompositionof their “backbones,” the chains of linkedrepeating unitsthat make up the macromolecules. Classified according to composition, industrial polymers are eithercarbon-chain polymers(also called vinyls) orheterochain poly...
Whatarepolymers（macromolecules）?——substancescontainingalargenumberofstructuralunits(“mers”)joinedbythesametypeoflinkage.→chain-likestructureOr:verylargemoleculesmadeupofsmallerunits,calledmonomersorrepeatingunits,covalentlybondedtogetherAtypicalpolymermayincludetensofthousandsofmonomers.Thisspecificmolecularstructure(...
While amylose is a chain of d-glucose unit that is connected together by α-1,-4 bonds, the amylopectin contains short chains of α-1,-4 linked d-glucose units that are branched by α-1,-6 bonds. Although starch is a biodegradable polymer that can be manufactured in large quantities ...
Of course, not every 3D printer is a technological wonder. Some are down right lemons and not worth your hard-earned cash. This is why we made the Tom’s Hardware Best 3D Printer List. There is no one size fits all in 3D printing, so we’ve picked the best machine to fit your nee...
Resorbable, implantable bioelectronic devices are emerging as powerful tools to reliably monitor critical physiological parameters in real time over extended periods. While degradable magnesium-based electronics have pioneered this effort, relatively sho
Meijer et al.4 proposed the most limiting definition regarding supramolecular polymers as polymeric arrays of monomeric units that are brought together by reversible and directional supramolecular interactions and exhibit chain-like behaviors in dilute solutions, concentrated solutions and in bulk. A ...