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    • 68. 发明申请
    • Antioxidant-functionalized polymers
    • 抗氧化官能化聚合物
    • US20070010632A1
    • 2007-01-11
    • US10536810
    • 2003-11-26
    • David KaplanAmarjit Singh
    • David KaplanAmarjit Singh
    • C08L63/00
    • 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.
    • 公开了用于制备自由基清除聚合物和用抗氧化剂官能化的聚合物膜的方法和组合物。 描述了具有抗氧化剂的单体的酶和化学定制,然后进行酶促聚合。 这些抗氧化剂官能化聚合物可以提高食品的保质期和质量,并且当用作包装或作为氧敏感材料的包装上的涂料时,可提高药剂的有效性。 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,同时还抑制抗氧化剂的逸出,从而限制个体的暴露和/或吸收。 除了在食品或药物包装中的使用之外,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,其将显着降低自由基损伤和/ 或氧气耗尽。 此外,通过将抗氧化剂与可生物降解的聚合物的偶联,可以控制抗氧化剂向受试者的递送和持续释放。