Results 1 to 10 of about 18,660 (158)

Ring-opening polymerization [PDF]

Chemistry 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, Pretula Julia, Slomkowski Stanislaw   +2 more
doaj   +2 more sources

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

Nature 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

Special Issue “Ring-Opening Polymerization” [PDF]

Molecules, 2016
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Takeshi Endo, Atsushi Sudo
doaj   +3 more sources

Cationic-anionic synchronous ring-opening polymerization [PDF]

Nature Communications
Chemical reactions with incompatible mechanisms (such as nucleophilic reactions and electrophilic reactions, cationic polymerization and anionic polymerization) are usually difficult to perform simultaneously in one-pot.
Wenli Wang, Xue Liang, Hengxu Liu, Jiamin Zhang, Yuanzu Zhang, Beibei Zhang, Jianhua Li, Yunqing Zhu, Jianzhong Du   +8 more
doaj   +2 more sources

Photoinitiated Cationic Ring-Opening Polymerization of Octamethylcyclotetrasiloxane

Molecules, 2023
Photochemical techniques have recently been revitalized as they can readily be adapted to different polymerization modes to yield a wide range of complex macromolecular structures.
Zehra Gul Coban, Huseyin Cem Kiliclar, Yusuf Yagci   +2 more
doaj   +4 more sources

Topochemical Ring-Opening Polymerization of an Oxathianethione. [PDF]

J Am Chem Soc
Single crystals of an enantiopure oxathianethione (OTT) were found to spontaneously convert to the corresponding polymer (POTT) through topochemical ring-opening polymerization (topoROP). The polymerization proceeds quantitatively and stereospecifically to give crystalline POTT with high molecular weights.
Calderón-Díaz A, Ordner L, Bernbeck MG, Palesati M, Weber M, Stingelin N, Gutekunst WR.   +6 more
europepmc   +3 more sources

Organocatalytic Ring-Opening Polymerization of Methyl-Substituted Glycolides [PDF]

ACS Polymers Au
Shrikant B. Nikam, Prakash Alagi, Jiaxi Xu, Safa Alkhamis, Nikos Hadjichristidis   +4 more
doaj   +2 more sources

Conditions to Control Furan Ring Opening during Furfuryl Alcohol Polymerization

Molecules, 2022
The chemistry of biomass-derived furans is particularly sensitive to ring openings. These side reactions occur during furfuryl alcohol polymerization.
Lucie Quinquet, Pierre Delliere, Nathanael Guigo   +2 more
doaj   +1 more source

Ring-Opening Polymerization of Hemoglobin [PDF]

Biomacromolecules, 2019
Hemoglobin (Hb), an oxygen-carrying protein, has an α2β2 tetrameric structure that dissociates reversibly into two αβ dimers (α2β2 ⇄ 2αβ). We synthesized a cyclic Hb-ring monomer with two β subunits bound through a 10 kDa polyethylene glycol (PEG) chain.
Takashi Matsuhira, Keizo Yamamoto, Hiromi Sakai   +2 more
openaire   +3 more sources

Carbodiimide Ring-opening Metathesis Polymerization

ACS 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 ...
Kaplan, Samuel W., Johnson, J. Drake, Wang, Zian, Sheiko, Sergei S., Maw, Mitchell, Zhukhovitskiy, Aleksandr V., Toth, Jozsef   +6 more
openaire   +2 more sources