Results 161 to 170 of about 94,776 (218)

A Highly Transparent Thermoplastic Synthesized from Ethylene that Melts Above 200 °C. [PDF]

Angew Chem Int Ed Engl
Lukas F, Dickert A, Kretschmer WP, Kempe R.   +3 more
europepmc   +1 more source

Safety and Innovation in Conventional Plastics: A Review of Polymer Synthesis and Emerging Technologies. [PDF]

Polymers (Basel)
Rosa DDS, Wiebeck H, Souza AG, Oliveira SA, Neto MLDS.   +4 more
europepmc   +1 more source

Cyclopentadienyl-Silsesquioxane Titanium Complexes in the Polymerizations of Styrene and L-Lactide. [PDF]

Polymers (Basel)
Vinueza-Vaca J, Anwar S, Impemba S, Grimaldi I, Jiménez G, Capacchione C, Tabernero V, Milione S.   +7 more
europepmc   +1 more source

Mechanistic Pathways and Product Selectivity in Pyrolysis of PE, PP and PVC: A Foundation for Applied Chemistry in Europe. [PDF]

Molecules
Tetičkovič T, Klinar D, Rižnar K, Pečar D.   +3 more
europepmc   +1 more source

Ziegler–Natta Catalysts: Regioselectivity and “Hydrogen Response”

ACS Catalysis, 2019
Advanced High Throughput Experimentation (HTE) methods were applied to quantify the regioselectivity and the so-called “hydrogen response” in propene polymerization of four Ziegler–Natta catalysts ...
Vittoria A., Meppelder A., Friederichs N., Busico V., Cipullo R.   +4 more
core   +4 more sources

Transition Metal Imido Compounds as Ziegler-Natta Olefin Polymerisation Catalysts

Advanced Synthesis and Catalysis, 2005
Transition metal imido compounds having the general formula [(L) nM(NR)] [where (L) n is a supporting ligand or ligand set, and R typically is alkyl or aryl] have been known for nearly 50 years, and ...
Philip Mountford, Paul D Bolton
exaly   +2 more sources

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Layer‐lattices in Ziegler–Natta catalysts

Journal of Polymer Science Part B: Polymer Physics, 1988
AbstractSome layered inorganic compounds of interest in old and new polymerization processes by Ziegler‐Natta stereospecific catalysis have been studied. The results are reported of an investigation concerning the crystallographic disorder phenomena in α‐TiCl3, VCl3, FeCl3, ball‐milled α‐MgCl2, β‐MgCl2, and in a new catalytic system produced according ...
ZANNETTI, ROBERTO, MAREGA, CARLA, MARIGO, ANTONIO, A. Martorana   +3 more
openaire   +1 more source

Morphology of Nascent Ziegler-Natta Polymers

Science, 1966
In the polymerization of α-olefins with heterogeneous Ziegler-Natta catalysts, the polymer is formed directly as long fibrillar units with folded chains. It is proposed that the fibrils are formed by the crystallization of polymer chains growing from the active sites on the catalyst surface, a process which is likened to root growth in whiskers.
P, Blais, R S, Manley
openaire   +2 more sources

Ziegler-Natta Catalysis

1980
Publisher Summary This chapter discusses the scope of Ziegler catalysis; stereoselectivity, kinetics, and mechanism of Ziegler catalysis; homogeneous Ziegler–Natta catalysts; and side reactions in homogeneous catalysts. Ziegler catalysis involves rapid polymerization of ethylene and α-ole-fins with the aid of catalysts based on transition-element ...
Hansjörg Sinn, Walter Kaminsky
openaire   +1 more source

Living Ziegler‐Natta Polymerizations: True or False?

Macromolecular Symposia, 2005
AbstractBased on the recent literature, the synthesis of novel polyolefin architectures via Ziegler‐Natta chemistry under living conditions appears to be a promising and fast‐growing area. In this paper, the appropriateness of the term “living” as applied to the said context is discussed in mechanistic terms, and the potential and the limitations of ...
BUSICO, VINCENZO, CIPULLO, ROBERTA, TALARICO, GIOVANNI   +2 more
openaire   +3 more sources