SUPRAMOLECULAR HANDCUFFS IN POLYMERIC ARCHITECTURE
申请人:Rauwald Urs
公开号:US20100247477A1
公开(公告)日:2010-09-30
This invention pertains generally to supramolecular polymers comprising a polymeric molecule linked to a first CB[8] guest molecule and an attachment compound linked to a second CB[8] guest molecule, wherein the first and second CB[8] guest molecules form a ternary host-guest complex with a CB[8] molecule which non-covalently links the polymeric molecule and the attachment compound in a supramolecular polymer. These polymers are useful as vehicles for delivery of a therapeutic compound for use in a method of treatment of the human or animal body, in particular for use in a method of delivering the therapeutic compound to a target site in an individual. The invention also provides methods for the preparation of the supramolecular polymers.
6-substituted glycolurils has been developed. The glycolurils have been used for the synthesis of methylene-bridged glycoluril dimers bearing hydrogenatoms on their convex face. Depending on the side walls of the dimers, different modes of self-assembly in the solidstate have been described using X-ray crystallography.
Imidazoimidazoles. I. The Reaction of Ureas With Glyoxal. Tetrahydroimidazo[4,5-d]imidazole-2,5-diones<sup>1,2</sup>
作者:Jay Nematollahi、Roger Ketcham
DOI:10.1021/jo01044a055
日期:1963.9
Disubstituted Cucurbituril-Bonded Silica Gel
申请人:Kim Kimoon
公开号:US20080093301A1
公开(公告)日:2008-04-24
A disubstituted cucurbituril-bonded silica gel and its use are provided. The disubstituted cucurbituril-bonded silica gel is useful for removal of air pollutants or water contaminants, and separation and purification of biological, organic, inorganic, or ionic substances.
VISCOUS WELLBORE FLUIDS
申请人:Scherman Oren A.
公开号:US20120103615A1
公开(公告)日:2012-05-03
A wellbore fluid contains a viscosifying polymer in which portions of the polymer are connected through formation of an inclusion complex involving cucurbituril 8 (i.e. CB[8]) as host molecule. The fluid contains guest molecules with first and second guest groups covalently attached wherein at least one of the guest molecules comprises a polymer chain. The CB [8] host and the guest molecules attach together through reception of first and second guest groups within CB[8] host cavities, thereby connecting polymer chains together as a larger, supramolecular polymer and enhancing viscosity of the fluid. Polymer molecules may be synthetic polymers and guest groups may be attached to monomers before polymerization. Alternatively guest groups may be attached to existing polymers which may be polysaccharide.