20.500.12556/DKUM-87007-b19fe8d3-74e4-7ebd-df6c-6ffc05b2b1f5 Green Processing of Neat Poly(lactic acid) Using Carbon Dioxide under Elevated Pressure for Preparation of Advanced Materials A Review (2012–2022) This review provides a concise overview of up-to-date developments in the processing of neat poly(lactic acid) (PLA), improvement in its properties, and preparation of advanced materials using a green medium (CO2 under elevated pressure). Pressurized CO2 in the dense and supercritical state is a superior alternative medium to organic solvents, as it is easily available, fully recyclable, has easily tunable properties, and can be completely removed from the final material without post-processing steps. This review summarizes the state of the art on PLA drying, impregnation, foaming, and particle generation by the employment of dense and supercritical CO2 for the development of new materials. An analysis of the effect of processing methods on the final material properties was focused on neat PLA and PLA with an addition of natural bioactive components. It was demonstrated that CO2-assisted processes enable the control of PLA properties, reduce operating times, and require less energy compared to conventional ones. The described environmentally friendly processing techniques and the versatility of PLA were employed for the preparation of foams, aerogels, scaffolds, microparticles, and nanoparticles, as well as bioactive materials. These PLA-based materials can find application in tissue engineering, drug delivery, active food packaging, compostable packaging, wastewater treatment, or thermal insulation, among others. aerogels drying foaming impregnation particle generation PLA aerogeli impregnacija sušenje generiranje delcev true false true MDPI Angleški jezik Slovenski jezik https://www.mdpi.com/journal/polymers Znanstveno delo 2024-02-06 13:53:22 2024-02-06 14:01:42 2024-11-11 15:02:01 0000-00-00 00:00:00 2023 0 0 Str. 29 št. 4, št. članka 860 Letn. 15 Feb. 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2023-01-11 2023-02-07 2023-02-09 66.02 143339779 10.3390/polym15040860 2073-4360 Milovanovic-2023-Green_Processing_of_Neat_Poly.pdf Milovanovic-2023-Green_Processing_of_Neat_Poly.pdf 1 BA6AED2FF95D4788B22C6C62D9426798 22f19a992d3dd6bbce14e8a681202e5ccc1a4d3a2f1af2b815e45afb5ebb7f56 c0e1bc9d-c4ef-11ee-b2aa-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=175957 https://www.mdpi.com/2073-4360/15/4/860 0 cc841b41-c4ef-11ee-b2aa-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=175959 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0