Functionalization of polyglycolides by "click" chemistry
申请人:Baker Gregory L.
公开号:US20090054619A1
公开(公告)日:2009-02-26
Poly(glycolide) polymers are disclosed. The polymers generally include a polymerized alkynyl-substituted glycolide having a polymer backbone with one or more alkynyl groups appended thereto. The alkynyl groups provide reactive sites for further functionalization of the polymer, for example by reaction with azide derivatives (e.g., azide-substituted organic compounds). Alkynyl and azide groups react via the “click” chemistry mechanism to form functional groups covalently bonded to the polymer via a triazole link. The polymers are biodegradable and can be used to deliver drugs or other therapeutic substances (e.g., large biomolecules such as single strand RNA) at targeted locations in a patient's body and/or at controlled release rates.
PROCESS FOR PREPARING CYCLIC ESTERS COMPRISING UNSATURATED FUNCTIONAL GROUPS AND POLYESTERS PREPARED FROM SAME
申请人:Evonik Degussa Corporation
公开号:EP2516413A1
公开(公告)日:2012-10-31
Functional polyglycolide nanoparticles derived from unimolecular micelles
申请人:Baker Gregory L.
公开号:US20090325292A1
公开(公告)日:2009-12-31
Poly(glycolide) polymers are disclosed. The polymers generally include a glycolide-based polymer backbone that includes one or more functional groups such as alkynyl groups, hydrophilic organic triazole groups, hydrophobic organic triazole groups (also including amphiphilic organic triazole groups), di-triazole organic crosslinking groups, and triazole-substituted drug derivatives. The alkynyl groups provide reactive sites for further functionalization of the polymer, for example by reaction with azide derivatives. The polymers can further encapsulate a drug for delivery to a patient (i.e., as compared to drug derivatives that are covalently attached to the polymer). The polymers can be in the form of thermodynamically stable unimolecular micelles or crosslinked nanoparticles. The polymer compositions are completely biodegradable and hold great potential for use in biomedical applications.
Process for Preparing Cyclic Esters Comprising Unsaturated Functional Groups and Polyesters Prepared From Same
申请人:Markland Peter
公开号:US20120004324A1
公开(公告)日:2012-01-05
Disclosed herein are process for preparing cyclic esters comprising unsaturated functional groups. Also disclosed are copolymers prepared from the cyclic esters. The copolymers can be used to form microparticles, polymer micelles, etc., which are useful in drug delivery applications.
Process for Preparing Cyclic Esters Comprising Unsaturated Functional groups And Polyesters Prepared From Same
申请人:Markland Peter
公开号:US20130171261A1
公开(公告)日:2013-07-04
Disclosed herein are process for preparing cyclic esters comprising unsaturated functional groups. Also disclosed are copolymers prepared from the cyclic esters. The copolymers can be used to form microparticles, polymer micelles, etc., which are useful in drug delivery applications.