WebJan 19, 2024 · In this work, the flow-induced crystallization of two polylactides (PLAs) with different microstructures (different l-lactic acid contents) is studied using simple shear, uniaxial extension and capillary flow experiments.In a simple shear and capillary flow, an increase in shear rate and a decrease in temperature were found to enhance the … WebApr 9, 2024 · At high flow strength, a flow-induced crystallization (FIC) occurred, producing a semicrystalline material possessing a high degree of crystallinity and primarily a monoclinic lattice structure. This FIC phase formed at a temperature (450 K) high above the quiescent melting point (≈400 K) and remained stable after cessation of flow for ...
Nonequilibrium Nature of Flow-Induced Nucleation in Isotactic ...
WebWe systematically investigate the detailed structure in the flow-induced crystallization of a lightly cross-linked high-density polyethylene as a model semicrystalline polymer sample … WebThe superscript "T" denotes thermally induced crystallization, whereas the superscript "f" denotes flow-induced crystallization. All variables are per unit volume and are … siera ridge homes scottsdale
Flow-induced crystallization of polylactides Request PDF
WebSep 3, 2024 · The temperature-induced crystallization-driven self-assembly (TI-CDSA) protocol allowed some control over the shape and size of some of the morphologies. ... The system used two PL1113-6300 ResiPore 3 µm 300 × 7.5 mm columns with DMF as the eluent with a flow rate of 1 mL/min and toluene as flow rate marker. The detector suite … WebMay 22, 2015 · Flow-induced crystallisation (FIC) in polymers 1-3 is a central problem in polymer science. Flow dramatically enhances the nucleation rate, leading to much faster crystallisation kinetics and ... WebFeb 6, 2024 · Abstract. The recently reported crystallization-induced diastereomer transformation (CIDT) of a precursor to navoximod was investigated using online HPLC via a modified EasySampler probe that enables selective solution phase sampling of heterogeneous reaction mixtures. By employing both chiral and achiral stationary … the powel crosley estate sarasota