Results 21 to 30 of about 74,434 (294)

Cure kinetics of ring-opening metathesis polymerization of dicyclopentadiene [PDF]

, 2002
The cure kinetics of polydicyclopentadiene (pDCPD) prepared by ring-opening metathesis polymerization with three different concentrations of Grubbs' catalyst was examined using differential scanning calirimetry (DSC).
Kessler, Michael R., White, Scott R.
core   +1 more source

Bayesian-optimization-assisted discovery of stereoselective aluminum complexes for ring-opening polymerization of racemic lactide

Nature Communications, 2023
Stereoselective ring-opening polymerization catalysts are used to produce degradable stereoregular poly(lactic acids) with thermal and mechanical properties that are superior to those of atactic polymers.
Xiaoqian Wang, Yang Huang, Xiaoyu Xie, Yan Liu, Ziyu Huo, Maverick Lin, Hongliang Xin, Rong Tong   +7 more
doaj   +1 more source

Ruthenium Olefin Metathesis Catalysts Bearing an N-Fluorophenyl-N-Mesityl-Substituted Unsymmetrical N-Heterocyclic Carbene [PDF]

, 2007
Two new ruthenium-based olefin metathesis catalysts, each bearing an unsymmetrical N-heterocyclic carbene ligand, have been synthesized and fully characterized.
Grubbs, Robert H., Vougioukalakis, Georgios C.   +1 more
core   +1 more source

Synthesis of Telechelic Polyisoprene via Ring-Opening Metathesis Polymerization in the Presence of Chain Transfer Agent [PDF]

, 2010
Telechelic polyisoprene was synthesized via the ring-opening metathesis polymerization (ROMP) of 1,5-dimethyl-1,5-cyclooctadiene (DMCOD) in the presence of cis-1,4-diacetoxy-2-butene as a chain transfer agent (CTA).
Grubbs, Robert H., Thomas, Renee M.
core   +2 more sources

Aspectos de la polimerización de glicidil metacrilato y sulfuro de propileno, usando difenilcinc como iniciador [PDF]

Avances en Química, 2010
The catalytic activity of diphenylzinc as initiator in the ring opening polymerization of glycidyl methacrylate (GMA) and propylene sulfide (PS) was analyzed. Diphenylzinc exhibited high activity as initiator in the polymerization of both monomers.
Alejandra Del Valle, Jesús Contreras, Carlos Torres   +2 more
doaj  

Copolymerization of phthalonitrile-based resin containing benzoxazine and cyanate ester: Curing behaviors, fiber-reinforced composite laminates and improved properties

eXPRESS Polymer Letters, 2019
Curing behaviors and copolymerization mechanisms between phthalonitrile-based resin containing benzoxazine (A-ph) and cyanate ester (CE) were characterized and discussed.
L. Chen, D. X. Ren, S. J. Chen, H. Pan, M. Z. Xu, X. B. Liu   +5 more
doaj   +1 more source

Data for quantum-chemical modeling of the mechanisms of ring-opening polymerization of methyl ethylene phosphate

Data in Brief, 2019
The data presented in this paper are related to the research article entitled ''Mechanistic study of transesterification in TBD-catalyzed ring-opening polymerization of methyl ethylene phosphate'' (Nifant'ev et al., 2019).
Ilya E. Nifant'ev, Andrey V. Shlyakhtin, Maxim A. Kosarev, Pavel D. Komarov, Stanislav G. Karchevsky, Pavel V. Ivchenko   +5 more
doaj   +1 more source

Precision Aliphatic Polyesters via Segmer Assembly Polymerization

Molecules, 2018
Precise structure-property relation of a biodegradable polymer (e.g., aliphatic polyester) is anticipated only if monomer units and chiral centers are arranged in a defined primary sequence as a biomacromolecule. An emerging synthetic methodology, namely
Fu-Rong Zeng, Yang Liang, Zi-Long Li
doaj   +1 more source

Polylactide-Based Materials: Synthesis and Biomedical Applications

Molecules, 2023
Polylactide (PLA) is a biocompatible polyester that can be obtained by polycondensation of lactic acid or the ring-opening polymerization (ROP) of lactide [...]
Marek Brzeziński, Malgorzata Basko
doaj   +1 more source

Ring opening polymerization of lactides and lactones by multimetallic alkyl zinc complexes derived from the acids Ph₂C(X)CO₂2H (X = OH, NH₂ ) [PDF]

, 2017
The reaction of the dialkylzinc reagents R₂Zn with the acids 2,2-Ph₂C(X)(CO₂H), where X = NH₂, OH, i.e. 2,2′-diphenylglycine (dpgH) or benzilic acid (benzH2), in toluene at reflux temperature afforded the tetra-nuclear ring complexes [RZn(dpg)]₄, where R
Al-Khafaji, Yahya, Al-Khafaji, Yahya F., Elsegood, Mark, Elsegood, Mark R. J., Elsegood, Mark R.J., Frese, Josef, Frese, Josef W. A., Frese, Josef W.A., Redshaw, Carl   +8 more
core   +1 more source