Results 11 to 20 of about 3,662 (299)
Novel flow apparatus for investigating shear-enhanced crystallization and structure development in semicrystalline polymers [PDF]
, 1999 An instrument to study the effects of shearing on the crystallization process in semicrystalline polymers is described. It can impose transient stresses similar to those encountered in polymer processing and provides in situ monitoring of microstructure ...
Kornfield, Julia A. +2 more
core +1 more source
Polymer Testing, 2021 The complete understanding of polymers crystallization kinetic in real industrial processes is fundamental for designing materials towards specific applications.
Enrico Carmeli +2 more
doaj +1 more source
Crystallization kinetics of polypropylenes. Effect of nucleating agents? [PDF]
, 2008 International audienceThermal conditions and formulation affect the crystallization mechanisms of polymers and the associated kinetics in a coupled manner.
Billon, Noëlle +2 more
core +2 more sources
ARO-The Scientific Journal of Koya University, 2021 In this study, different types of polymers in post-consumer plastics with pure plastics have been studied. High-density polyethylene (HDPE1, HDPE2), Polyvinyl chloride (PVC3, PVC4), Polyethylene terephthalate (PET5, PET6) and Polypropylenes (PP7, PP8 ...
Shawbo A. Abubaker +2 more
doaj +1 more source
Rigidity of Orientationally Ordered Domains of Short Chain Molecules [PDF]
, 2000 By molecular dynamics simulation, discovered is a strange rigid-like nature for a hexagonally packed domain of short chain molecules. In spite of the non-bonded short-range interaction potential (Lennard-Jones potential) among chain molecules, the packed
Fujiwara S. +6 more
core +3 more sources
Zirconium and titanium complexes supported by tridentate LX2 ligands having two phenolates linked to furan, thiophene, and pyridine donors: precatalysts for propylene polymerization and oligomerization [PDF]
, 2008 Zirconium and titanium complexes with tridentate bis(phenolate)-donor (donor = pyridine, furan and thiophene) ligands have been prepared and investigated for applications in propylene polymerization.
Agapie, Theodor +4 more
core +2 more sources
Polímeros, 2003 The intermolecular defect distribution of poly(propylenes) of the Ziegler-Natta (ZN) and metallocene (M) types is assessed by classical fractionation and analysis of the fractions by GPC and 13C NMR.
Rufina G. Alamo
doaj +1 more source
Polímeros, 2015 The morphological and mechanical properties of Ziegler–Natta catalyzed isotactic polypropylenes as influenced by the molecular weight and tacticity was investigated. Polypropylene samples were injection moulded into standard disks with a HAAKE MiniJet II
Ismael Amer +2 more
doaj +1 more source
On the toughness of thermoplastic polymer nanocomposites as assessed by the essential work of fracture (EWF) approach [PDF]
, 2013 The essential work of fracture (EWF) approach is widely used to determine the plane stress fracture toughness of highly ductile polymers and related systems.
A. Pegoretti +6 more
core +1 more source
High-resolution solid-state NMR study of isotactic polypropylenes
eXPRESS Polymer Letters, 2012 The high-resolution solid-state 13C NMR spectra were recorded for metallocene (m) and Ziegler-Natta (ZN) isotactic polypropylenes (iPP) in pelletized form using cross polarization (CP) and magic angle spinning (MAS) techniques within the temperature ...
O. Fricova +6 more
doaj +1 more source