Structural modification of poly(ε‐caprolactone) (PCL) allows the fabrication of new functional materials obtained via the PCL films/fibers stretching in ethanol by the crazing mechanism. Atomic force microscopy, X‐ray scattering, and differential scanning calorimetry are employed to study the evolution of PCL structure. It is shown that ethanol plasticizes the polymer being deformed, and the stretching of PCL films/fibers occurs with formation of a fibrillar‐porous structure in the interlamellar space. The obtained porous matrices have pore size below 50 nm and bulk porosities of 28% and 48% for fibers and films, respectively. Thermal stabilization of the PCL films’ porous structure made it possible to obtain breathable materials with a vapor permeability of 625–652 g m⁻² per day. The resulting porous PCL fibers and films can be used as matrices for the incorporation of useful additives and preparation of functional nanocomposites (NCs), biodegradable surgical suture, packaging, covering, and textile vapor‐permeable materials. Hybrid NCs with antibacterial and fungicidal activities are obtained on the basis of the porous PCL matrices and functional components (5% silver, 1% brilliant green, 28% Betadine, etc.) incorporated into them.

中文翻译：

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基于环境龟裂获得的基于多孔聚（ε-己内酯）的具有抗菌活性的透气材料和杂化纳米复合材料

聚（ε-己内酯）（PCL）的结构改性允许制造新的功能材料，该功能材料是通过通过开裂机理在乙醇中拉伸的PCL膜/纤维获得的。原子力显微镜，X射线散射和差示扫描量热法用于研究PCL结构的演变。结果表明，乙醇使变形的聚合物增塑，并且PCL膜/纤维的拉伸随着层间空间中纤维状-孔结构的形成而发生。所获得的多孔基质的孔径小于50nm，且纤维和薄膜的孔隙率分别为28％和48％。PCL膜多孔结构的热稳定性使得可以获得透气性为625-652 g m ^-2的透气材料成为可能每天。所得的多孔PCL纤维和薄膜可用作基质，用于掺入有用的添加剂，制备功能性纳米复合材料（NCs），可生物降解的外科缝合线，包装，覆盖和纺织蒸气可渗透材料。基于多孔PCL基质和功能成分（5％的银，1％的亮绿色，28％的Betadine等），可以得到具有抗菌和杀真菌活性的杂合NC。