[EN] METHOD FOR MAKING A POLYMER, A POLYMER ARTICLE, A BIODEVICE, AND CYCLIC CARBONATE<br/>[FR] PROCÉDÉ DE FABRICATION D'UN POLYMÈRE, ARTICLE POLYMÈRE, DISPOSITIF BIOLOGIQUE, ET CARBONATE CYCLIQUE
申请人:SSENS B V
公开号:WO2013004296A1
公开(公告)日:2013-01-10
The present invention relates to a method for making a polymer wherein during ring opening polymerisation is incorporated into the polymer chain at least one cyclic (alkyl) carbonate monomer having the formula (1) wherein Y is optional and represents the residue of a sulfhydryl reacted group, X represents a functional group reactive with a sulfhydryl group, L = -[CH2]n with n = 0-10, or L =–[CH2]p-S- S-[CH2]q with p and q are 0-5 or L =–[PEG]-with PEG is a group that comprises a –[CH2CH2O]m-group with m = 1-200, and R2 is hydrogen, methyl or ethyl. Optionally a cyclic (alkyl) acryloyl carbonate, or other additional monomer may be used as comonomer. The polymer may be formed into a polymer article, such as a polymer film, such as a coating and modified and/or cross linked, to a polymer or polymer article obtainable, and to a biodevice, their use, and to the cyclic (alkyl)carbonates.
regenerative medicine, and controlled drug release intimately relies on the development of advanced functional biomaterials. Here, we report on versatile and robust synthesis of novel vinylsulfone (VS)-functionalized biodegradable polymers that offer unprecedented access to advanced functional biodegradable polymers and coatings through selective Michael-type conjugate reaction with thiol-containing
Functional Poly(ε-caprolactone)s via Copolymerization of ε-Caprolactone and Pyridyl Disulfide-Containing Cyclic Carbonate: Controlled Synthesis and Facile Access to Reduction-Sensitive Biodegradable Graft Copolymer Micelles
PCL-g-SS-PEG micelles. MTT assays in HeLa cells demonstrated that DOX-loaded PCL-g-SS-PEG micelles retained high antitumor activity with low IC50 (half-maximal inhibitory concentration) of 0.82–0.95 μg DOX equiv/mL while blank PCL-g-SS-PEG micelles were nontoxic up to a tested concentration of 1.0 mg/mL. This study presents a versatile and controlled synthesis of PDS-functionalized biodegradable polymers
从四个简单的步骤中,从3-甲基-3-氧杂环丁烷甲醇中获得吡啶二硫化物官能化的环状碳酸酯(PDSC)单体,并将其用于通过环方便地制备含有侧基吡啶二硫化物(PDS)的功能性聚(ε-己内酯)(PCL)。与ε-己内酯进行开环共聚。结果表明,PDS-官能化的PCL聚合物具有可控制的分子量和官能度。在PDS-官能化的PCL和硫醇化的聚乙二醇(PEG-SH)之间以2/1的PEG-SH / PDS摩尔比进行的交换反应以高收率提供了PCL- g -SS-PEG接枝共聚物。动态光散射(DLS)分析表明PCL- g-SS-PEG共聚物在磷酸盐缓冲液(pH 7.4,10 mM)中自组装成直径为110-120 nm的胶束,且低多分散性(PDI)。PCL-克-SS-PEG胶束而在生理条件下足够稳定的人容易发生还原条件下快速壳脱落和聚集。将阿霉素(DOX)以10.1重量%的体面的药物装载含量装载到PCL- g -SS-