Journal ArticleDOI
Separations using carbon dioxide.
Stastny,Dmitry M. Rudkevich +1 more
Reads0
Chats0
TLDR
Greenhouse gas CO2 can be used as a building block for separating materials because it causes structural switching in receptors and their host−guest complexes, producing insoluble supramolecular polymers.Abstract:
CO2 causes structural switching in receptors and their host−guest complexes, producing insoluble supramolecular polymers. Upon precipitation these polymers trap, separate, and keep their guests for extended time, with no solvent needed. However, they can dissociate back to their monomers by releasing CO2 upon heating or addition of acid. Greenhouse gas CO2 can thus be used as a building block for separating materials.read more
Citations
More filters
Journal ArticleDOI
CO2-triggered switchable solvents, surfactants, and other materials
TL;DR: In this article, the authors used CO2 at atmospheric pressure to trigger dramatic changes in the properties of switchable materials such as solvents, surfactants, solutes, catalysts, particles, polymers, and gels.
Journal ArticleDOI
CO2-responsive polymeric materials: synthesis, self-assembly, and functional applications.
TL;DR: This review focuses on the synthesis of CO2-responsive polymers using reversible deactivation radical polymerization (RDRP), a powerful technique for the preparation of well-defined (co)polymers with precise control over molecular weight distribution, chain-end functional groups, and polymer architectural design.
Journal ArticleDOI
Switchable Solvents Consisting of Amidine/Alcohol or Guanidine/Alcohol Mixtures
Lam Phan,Daniel Chiu,David J. Heldebrant,Hillary Huttenhower,Ejae John,Xiaowang Li,Pamela Pollet,Ruiyao Wang,Charles A. Eckert,Charles L. Liotta,†,‡ and,Philip G. Jessop +10 more
TL;DR: In this article, a mixture of an alcohol and either an amidine or a guanidine has been developed to switch from a low-polarity form to a high-Polarity ionic liquid upon treatment with CO2 at atmospheric pressure.
Journal ArticleDOI
Study of the carbon dioxide chemical fixation-activation by guanidines
Fernanda Stuani Pereira,Eduardo R. deAzevedo,Eirik F. da Silva,Tito José Bonagamba,Deuber Lincon da Silva Agostini,Alviclér Magalhães,Aldo Eloizo Job,Eduardo René Pérez González +7 more
TL;DR: In this article, the authors proposed new methods for the fixation of CO2 using the guanidine bases tetramethylguanidine (TMG) and 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]-pyrimidine (TBD).
Journal ArticleDOI
Supramolecular Polymerization Triggered by Molecular Recognition between Bisporphyrin and Trinitrofluorenone
TL;DR: A bisporphyrin cleft connected by a pyridine dicarboxamide linker that assembles to form a unique complementary dimer in organic media is developed and the novel molecular recognition-directed supramolecular polymerization of monomer 1 in solution and solid state is reported.
References
More filters
MonographDOI
Supramolecular Chemistry: Concepts and Perspectives
TL;DR: From molecular to supramolescular chemistry: concepts and language of supramolecular chemistry, molecular recognition, information, complementarity molecular receptors - design principles and more.
Journal ArticleDOI
Macrocyclic polyethers and their complexes.
C. J. Pedersen,H. K. Frensdorff +1 more
TL;DR: Cyclic polyethers have been successfully employed, inter alia, in experiments with ionic compounds in organic solvents and in studies of ion transport in biological systems.
Journal ArticleDOI
Converting carbon dioxide into carbamato derivatives.
Journal ArticleDOI
Exploring reversible reactions between CO2 and amines
TL;DR: In this article, the authors revisited the old chemistry between CO 2 and primary alkylamines and showed that CO 2 entrapment can be prevented by using carbamic acids.
Journal ArticleDOI
Studies on the solvent dependence of the carbamic acid formation from ω-(1-naphthyl)alkylamines and carbon dioxide
TL;DR: In this paper, Naphthylalkylamines 1−3 in DMSO, DMF or pyridine (protophilic, highly dipolar, aprotic solvent) resulted in complete conversion of the amines to the corresponding carbamic acids 4−6.