RADIOPAQUE MULTI-ARMED POLYMERS AND COMPOSITIONS, SYSTEMS AND METHODS PERTAINING TO THE SAME

    公开(公告)号:WO2021041230A1

    公开(公告)日:2021-03-04

    申请号:PCT/US2020/047439

    申请日:2020-08-21

    Abstract: In some aspects, the present disclosure pertains to a polymer that comprises a plurality of polymeric arms, wherein a first portion of the polymeric arms each comprises a reactive end group and wherein a second portion of the polymeric arms each comprises a radiopaque aromatic moiety comprising a monocyclic or multicyclic aromatic structure having a plurality of radiopaque functional groups and a plurality of hydrophilic functional groups. In some aspects, the present disclosure pertains to systems comprising (a) a first composition comprising such a radiopaque polymer and (b) a second composition comprising a multifunctional compound that comprises reactive functional groups that are reactive with the reactive end group. In some aspects, the present disclosure pertains to crosslinked reaction products of (a) such a radiopaque polymer and (b) a multifunctional compound that comprises reactive functional groups that are reactive with the reactive end group.

    REACTIVE MULTI-ARM POLYMERS HAVING BRANCHED END GROUPS

    公开(公告)号:WO2021041234A1

    公开(公告)日:2021-03-04

    申请号:PCT/US2020/047450

    申请日:2020-08-21

    Abstract: In some aspects, the present disclosure pertains to a polymer that comprises a plurality of polymer arms, wherein a first portion of the polymer arms comprise a reactive end group and wherein a second portion of the polymer arms comprise a branched end group that comprise a plurality of covalently attached diagnostic and/or therapeutic groups, which may be, for example, radiocontrast groups or radioactive groups. Other aspects pertain to a system that comprises (a) a first composition comprising such a polymer and (b) a second composition comprising a multifunctional compound that comprises reactive functional groups that are reactive with the reactive end group of the multi-arm polymer. Still other aspects pertain to a crosslinked reaction product of (a) such a polymer and (b) a multifunctional compound that comprises functional groups that are reactive with the reactive end group of the multi-arm polymer.

    MULTIFUNCTIONAL NITROXIDE-MEDIATED POLYMERIZATION INITIATORS AND PRODUCTS FORMED THEREFROM

    公开(公告)号:WO2021041227A1

    公开(公告)日:2021-03-04

    申请号:PCT/US2020/047436

    申请日:2020-08-21

    Abstract: In some aspects, the present disclosure pertains to multi-arm polymers that comprise a core and a plurality of polymer segments having a first end that is covalently attached to the core and (a) a second end comprising a moiety that comprises a reactive end group, wherein the polymer segments comprise one or more hydrophilic aprotic NMP-polymerizable monomers, and wherein the reactive multi-arm polymer comprises nitroxide radicals or (b) a second end comprising a moiety that comprises an alkoxyamine group, wherein the core is a polyol residue, and wherein the polymer segments comprise one or more NMP-polymerizable monomers. In some aspects, the present disclosure pertains to a multifunctional alkoxyamine molecule comprising a core and a plurality of alkoxyamine groups covalently attached to the core, wherein the core is a polyol residue.

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