Results 81 to 90 of about 81,401 (281)
Entanglement Formation Mechanism in the POSS Modified Heterogeneous Ziegler–Natta Catalysts
Macromolecules, 2019 Chain entanglement was very important for adjusting the processability and mechanical property of nascent ultrahigh molecular weight polyethylene (UHMWPE).
Yuming Chen +7 more
semanticscholar +1 more source
An investigation of the melt blown web defect known as shot using metallocene and ziegler-natta based polypropylene resins [PDF]
, 2000 An extensive experimental investigation was undertaken to study the influence of processing parameters and resin type on the production of shot in the melt blowing process. Both early generation commercial metallocene and conventional Ziegler-Natta based
Qashou, Imad M.
core +1 more source
Synthesis of conducting graphite-like nanometer wires via soluble precursors [PDF]
, 1994 Graphite - like conducting materials were encapsulated in the channels of new mesoporous MCM- 41 materials with typical channel diameters of 30-40 Ä.
Bein, Thomas +3 more
core +1 more source
Study on the Effects of Temperature, Time and the Policy of Prepolymerization on Particle Morphology in Propylene Slurry Polymerization with Heterogeneous Ziegler-Natta Catalysts [PDF]
علوم و تکنولوژی پلیمر, 2007 The effects of temperature, time and the strategy of prepolymerization were studied on the morphology of polypropylene particles. propylene polymerization was carried out in slurry phase using 4th generation of Ziegler-Natta Catalyst, cyclohexylmethyl ...
G. Pircheraghi +2 more
doaj +1 more source
An Overview of the Potential of UV Modification of Polypropylene [PDF]
, 2016 This is the peer reviewed version of the following article: Amintowlieh, Y., Tzoganakis, C., & Penlidis, A. (2016). An Overview of the Potential of UV Modification of Polypropylene.
Amintowlieh, Yasaman +2 more
core +1 more source
Genesis of MgCl2 -based Ziegler-Natta Catalysts as Probed with Operando Spectroscopy.
ChemPhysChem, 2018 Ziegler-Natta catalysts for olefin polymerization are intrinsically complex multi-component systems. The genesis of the active sites involves several simultaneous and sequential steps, making the individual steps and interconnections difficult to be ...
A. Piovano +9 more
semanticscholar +1 more source
ChemSusChem, Volume 18, Issue 16, August 6, 2025.This review examines the progress and challenges of lab‐scale pyrolytic liquefaction, trends in industrial‐scale projects, and the gap between these technologies, proposing a future research direction for plastic pyrolysis to advance the transition to a circular economy.
Shogo Kumagai +4 more
wiley +1 more source
Human flaws and logical tools in engineering
The Canadian Journal of Chemical Engineering, Volume 103, Issue 8, Page 3512-3520, August 2025.Abstract This paper explores the limitations of human cognition, especially in engineering research, emphasizing the need for mathematical models and methods to guide decision‐making and theory validation. While human cognition excels in certain tasks, it is prone to biases that can distort our understanding.
André C. R. Martins
wiley +1 more source
Polímeros, 2000 Foi utilizado o sistema catalítico tipo Ziegler-Natta modificado, constituído por TiCl4/I2/Al(i-Bu)3 para a síntese de polibutadieno com alto teor de unidades 1,4-cis.
Neusa M. T. Pires +2 more
doaj +1 more source