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    • 6. 发明申请
    • ANTIOXIDANT-FUNCTIONALIZED POLYMERS
    • 抗氧化剂官能化聚合物
    • WO2004050795A2
    • 2004-06-17
    • PCT/US2003/037775
    • 2003-11-26
    • TUFTS UNIVERSITYKAPLAN, David, L.SINGH, Amarjit
    • KAPLAN, David, L.SINGH, Amarjit
    • C09K15/06
    • A61L29/16A61K47/58A61K47/59A61K47/593A61K47/6957A61L17/005A61L27/34A61L27/54A61L31/16A61L2300/40A61L2300/428A61L2300/442A61L2300/604C07D307/62C08F4/00C08F12/22C08F112/14C08F112/32C08F220/14C08G63/08C08G64/30C08G65/44C08G2650/64C08K5/005C08L71/126C12P7/62C12P17/04
    • Methods and compositions are disclosed for the preparation of free radical scavenging polymers and polymer films functionalized with antioxidants. Enzymatic and chemical tailoring of monomers with antioxidants followed by enzymatic polymerization is described. These antioxidant functionalized polymers can increase shelf life and quality of food products, as well as, increase effectiveness of pharmaceutical agents when used as packaging or as coatings on packaging for oxygen sensitive materials. The novel enzymatic covalent coupling of antioxidants to a polymer enhances the free radical scavenging ability of packaging while also inhibiting the escape of the antioxidants, and thus limiting exposure and/or absorption by an individual. In addition to its use in food or pharmaceutical packaging, methods are disclosed for using the antioxidant coupled polymers in a variety of applications including as coatings on the inside of medical devices, such as stents and catheters, which would substantially reduce free radical damage and/or oxygen depletion during medical procedures. Furthermore, through the coupling of antioxidants to biodegradable polymers, controlled delivery and sustained release of an antioxidant to a subject is possible.
    • 公开了用于制备用抗氧化剂官能化的自由基清除聚合物和聚合物薄膜的方法和组合物。 描述了用抗氧化剂随后进行酶促聚合的单体的酶和化学剪裁。 这些抗氧化官能化聚合物可以延长食品的保存期限和质量,以及当用作包装或用作氧敏感材料包装时的药剂的有效性。 抗氧化剂与聚合物的新型酶共价偶联增强了包装的自由基清除能力,同时还抑制了抗氧化剂的逸出,并由此限制了个体的暴露和/或吸收。 除了用于食品或药物包装之外,还公开了在各种应用中使用抗氧化剂偶联聚合物的方法,包括作为医疗装置内部的涂层,例如支架和导管,其将显着减少自由基损伤和/ 或医疗过程中的氧气消耗。 此外,通过将抗氧化剂与生物可降解聚合物偶联,可以控制递送和持续释放抗氧化剂给受试者。