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Ring-opening polymerization [PDF]

open access: yesChemistry Teacher International, 2021
Ring-opening polymerization is defined by IUPAC (Penczek, S., Moad, G. (2008). Glossary of the terms related to kinetics, thermodynamics, and mechanisms of polymerization.
Penczek Stanislaw   +2 more
doaj   +2 more sources

Aromatic ring-opening metathesis. [PDF]

open access: yesNature
Abstract Aromatic compounds are used across chemistry and materials science as a result of their stability, characteristic interactions, defined molecular shape and the numerous approaches for their synthesis by a diversity of cyclization reactions 1 .
Hutskalova V, Sparr C.
europepmc   +3 more sources

Dispersity-controlled ring-opening polymerization of epoxide [PDF]

open access: yesNature Communications
Dispersity or molar mass distribution (Ð M) profoundly influences polymer properties, but its control remains a challenge, especially for ring-opening polymerization (ROP).
Yubo Zhou, Junpeng Zhao, Guangzhao Zhang
doaj   +2 more sources

Straightforward Synthetic Approach to Aminoalcohols with 9-oxabicyclo[3.3.1]nonane or Cyclooctane Core via Nucleophilic Ring-Opening of Spirocyclic Bis(oxiranes) [PDF]

open access: yesMolecules
Nucleophilic ring-opening of bis(oxiranes), containing several reactive centers, can be used to elaborate straightforward atom-economy and stereoselective approaches to polyfunctionalized compounds.
Olga V. Ryzhikova   +6 more
doaj   +2 more sources

Alkylative Aziridine Ring-Opening Reactions

open access: yesMolecules, 2021
In this study, the highly strained three-membered aziridine ring was successfully activated as the aziridinium ion by alkylation of the ring nitrogen with a methyl, ethyl or allyl group, which was followed by ring opening with external nucleophiles such ...
Jieun Choi, Taehwan Yu, Hyun-Joon Ha
doaj   +1 more source

Recent advances using cyclopropanols and cyclobutanols in ring-opening asymmetric synthesis

open access: yesGreen Synthesis and Catalysis, 2022
Due to high ring strain energies, cyclopropanols and cyclobutanols have a strong tendency of breaking the endocyclic C–C bonds to participate in versatile organic transformations.
Hong Yan, Gregory S. Smith, Fen-Er Chen
doaj   +1 more source

Carbodiimide Ring-opening Metathesis Polymerization

open access: yesACS Central Science, 2022
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

Alkylating ability of carbohydrate oxetanes: Practical synthesis of bolaform skeleton derivative [PDF]

open access: yesJournal of the Serbian Chemical Society, 2015
Alkylating ability of oxetane ring in carbohydrate structure was investigated and flexible method for bolaform amphiplile skeleton construction with xylose as polar heads is proposed.
Hadžić Pavle A.   +2 more
doaj   +1 more source

Kinetics and mechanism of the conversion of cyclobutenones to vinylketens [PDF]

open access: yes, 1976
The structure–rate relationships for the electrocyclic ring opening of phenylated and alkylated cyclobutenones to vinylketens, though not fully understood, resemble those which are observed in cyclobutene ring ...
Huisgen, Rolf, Mayr, Herbert
core   +1 more source

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