Thiocarbonylthio Compounds (SC(Z)S−R) in Free Radical Polymerization with Reversible Addition-Fragmentation Chain Transfer (RAFT Polymerization). Effect of the Activating Group Z
作者:John Chiefari、Roshan T. A. Mayadunne、Catherine L. Moad、Graeme Moad、Ezio Rizzardo、Almar Postma、Melissa A. Skidmore, and、San H. Thang
DOI:10.1021/ma020883+
日期:2003.4.1
Free-radical polymerization in the presence of suitable addition−fragmentation chain transfer agents [SC(Z)S−R] (RAFT agents) possess the characteristics of a living polymerization (i.e., polymer products can be reactivated for chain extension and/or block synthesis, molecular weights are predetermined by RAFT agent concentration and conversion, narrow polydispersities are possible). Styrene polymerizations
Polymeric prodrugs and subcutaneous and/or intramuscular administration thereof
申请人:CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
公开号:US20200353090A1
公开(公告)日:2020-11-12
The invention relates to new prodrugs of active molecules. These prodrugs allow, in particular, the subcutaneous or intramuscular administration of active molecules of which the subcutaneous or intramuscular administration is problematic or impossible, in particular because of the toxicity at the injection site. The prodrugs according to the invention comprise an active ingredient, covalently linked with a polymer chain, preferably a hydrophilic and/or thermosensitive polymer chain. The invention relates, in particular, to polymeric prodrugs comprising a polymer chain formed at least in part by acrylamide monomer or one of its derivatives, the polymer comprising a proximal part and a terminal part; a first pharmaceutically active molecule covalently coupled to the proximal part of the polymer; possibly a second pharmaceutically active molecule covalently coupled to the terminal part of the polymer.
Polymerizable sulfonamide compounds and polymers thereof
申请人:Massachusetts Institute of Technology
公开号:US11155674B2
公开(公告)日:2021-10-26
Methods, compositions, reagents, and systems that allow for the preparation and utilization of sulfonamide salt polymer electrolytes are disclosed herein. Methods and reagents to prepare sulfonamide salt monomers are also disclosed herein. The sulfonamide salt polymer electrolytes can be used as components in energy storage devices, conductive materials, electrochemical cells, gels, adhesives, and drug delivery vehicles.
The present invention relates to dithiocarbamic esters, their preparation and their use for regulating the degree of polymerization during the polymerization of monomers, such as during the polymerization of chloroprene to give polychloroprene, and during the polymerization of 2,3-dichlorobutadiene to give poly-2,3-dichlorobutadiene, and during the copolymerization of chloroprene with 2,3-dichlorobutadiene. The present invention further relates to polymers which are obtainable via the polymerization of monomers in the presence of the dithiocarbamic esters of the invention. The present invention also relates to polymers which contain end groups derived from the dithiocarbamic esters of the present invention.
The present invention relates to dithiocarbamic esters, their preparation and their use for regulating the degree of polymerization during the polymerization of monomers, such as during the polymerization of chloroprene to give polychloroprene, and during the polymerization of 2,3-dichlorobutadiene to give poly-2,3-dichlorobutadiene, and during the copolymerization of chloroprene with 2,3-dichlorobutadiene. The present invention further relates to polymers which are obtainable via the polymerization of monomers in the presence of the dithiocarbamic esters of the invention. The present invention also relates to polymers which contain end groups derived from the dithiocarbamic esters of the present invention.