6533b7d2fe1ef96bd125e31e

RESEARCH PRODUCT

Mechanisms of polymer crystallization from flowing solutions

D. AciernoG. MarrucciF. P. La Mantia

subject

Work (thermodynamics)Materials sciencePolymers and PlasticsCrystallization of polymersPhysics::OpticsCrystal growthGeneral ChemistryPolyethylenelaw.inventionCrystalMolecular dynamicschemistry.chemical_compoundchemistrylawChemical physicsPolymer chemistryMaterials ChemistryCrystallizationShear flow

description

The recent experimental results on flow-induced crystallization by Pennings and coworkers show that extremely rigid polyethylene fibers can be obtained in a shear flow. On the other hand, the mechanism by which these flow-induced crystals are produced is still open to investigation. In this work a few aspects of fibrous crystal growth are theoretically investigated. The molecular dynamics of chains partly attached to the crystal and partly immersed in the solution is considered. The influence of temperature and of geometrical factors is also discussed.

https://doi.org/10.1002/pen.760181013