Compositions of P4HB with high purity have been developed. The compositions are prepared by washing P4HB biomass prior to solvent extraction, and precipitating P4HB from solution. The same solvent is preferably used to wash the P4HB biomass, and as a non-solvent to precipitate the polymer from a P4HB solvent solution. The highly pure P4HB compositions are suitable for preparing implants. The implants may be used for the repair of soft and hard tissues.
高纯度 P4HB 合成物已经研制成功。这种合成物的制备方法是:在溶剂萃取之前先洗涤 P4HB
生物质,然后从溶液中沉淀 P4HB。最好使用相同的溶剂来洗涤 P4HB
生物质,并作为非溶剂从 P4HB 溶剂溶液中析出聚合物。高纯度的 P4HB 组合物适用于制备植入物。植入物可用于修复软组织和硬组织。