Carbodiimide Ring-opening Metathesis Polymerization
Controlled incorporation of nitrogen into macromolecular skeletons is a long-standing challenge whose resolution would enable the preparation of soft materials with the scalability of man-made plastics and functionality of Nature’s proteins. Nylons and polyurethanes notwithstanding, nitrogen-rich polymer backbones remain scarce, and their synthesis ...
J. Drake Johnson +6 more
openaire +2 more sources
The polycarbonate polyols(PCD) obtained by ring-opening polymerization of a general cyclic monomer is mostly a linear flexible structure, which is used as a raw material to synthesize polyurethanes, and it is difficult to simultaneously ensure good ...
Xuemei WANG +4 more
doaj +1 more source
Morphology and properties evolution upon ring-opening polymerization during extrusion of cyclic butylene terephthalate and graphene-related-materials into thermally conductive nanocomposites [PDF]
In this work, the study of thermal conductivity before and after in-situ ring-opening polymerization of cyclic butylene terephthalate into poly (butylene terephthalate) in presence of graphene-related materials (GRM) is addressed, to gain insight in the ...
Colonna, S. +4 more
core +2 more sources
"Research progress in preparation of thermoplastic elastomers by living controlled polymerization"
Starting with polymerization methods such as anionic polymerization, cationic polymerization, ring-opening polymerization, and controlled free radical polymerization, the research progress of different types of thermoplastic elastomer synthesis ...
ZHANG hao1, ZHANG Hua-qiang2, LIU Ruo-fan1, ZHAO Zhi-chao2, JIN Yu-shun1, LI Fu-chong2, WU Yi-bo1
doaj +1 more source
Ruthenium Olefin Metathesis Catalysts Bearing Carbohydrate-Based N-Heterocyclic Carbenes [PDF]
Ru-based olefin metathesis catalysts containing carbohydrate-derived NHCs from glucose and galactose were synthesized and characterized by NMR spectroscopy. 2D-NMR spectroscopy revealed the presence of Ru−C (benzylidene) rotamers at room temperature, and
Grubbs, Robert H., Keitz, Benjamin K.
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Cis-Selective Ring-Opening Metathesis Polymerization with Ruthenium Catalysts [PDF]
Cis-selective ring-opening metathesis polymerization of several monocyclic alkenes as well as norbornene and oxanorbornene-type monomers using a C–H activated, ruthenium-based metathesis catalyst is reported.
Fedorov, Alexey +2 more
core +2 more sources
The Cationic Ring-Opening Polymerization of Tetrahydrofuran with 12-Tungstophosphoric Acid
The cationic ring-opening polymerization reaction of tetrahydrofuran at 20 ºC was catalyzed by H3PW12O40·13H2O as solid acid catalyst. The effect of the proportions of acetic anhydride and catalyst, reaction time and support on the polymerization ...
Hassan Al-Shahri +2 more
doaj +1 more source
Spiroorthocarbonates (SOCs) exhibit good shrinkage resistance with ring-opening polymerization initiated by a cationic photoinitiator, with potential application in reducing the volume shrinkage by C=C double bond polymerization on three-dimensional (3D)
G. H. Lin +6 more
doaj +1 more source
Two-Dimensional Controlled Syntheses of Polypeptide Molecular Brushes via N-Carboxyanhydride Ring-Opening Polymerization and Ring-Opening Metathesis Polymerization. [PDF]
Well-defined molecular brushes bearing polypeptides as side chains were prepared by a "grafting through" synthetic strategy with two-dimensional control over the brush molecular architectures.
Borguet, Yannick P +7 more
core +1 more source
Facile Synthesis of Effcient and Selective Ruthenium Olefin Metathesis Catalysts with Sulfonate and Phosphate Ligands [PDF]
A series of novel, air-stable ruthenium NHC catalysts with sulfonate and phosphate anions have been prepared easily in one pot at high yields using commercially available precursors.
Grubbs, Robert H., Teo, Peili
core +1 more source

