PBSA (polybutylene succinate adipate) ndi mtundu wa mapulasitiki owonongeka, omwe nthawi zambiri amapangidwa kuchokera ku zinthu zakale, ndipo amatha kuonongeka ndi tizilombo tating'onoting'ono m'chilengedwe, ndi kuwonongeka kwa mlingo woposa 90% m'masiku 180 pansi pa chikhalidwe cha composting.
Mapulasitiki omwe amatha kuwonongeka ali ndi magulu awiri, omwe ndi mapulasitiki owonongeka omwe amapangidwa ndi bio-based ndi mapulasitiki owonongeka opangidwa ndi petroleum. Pakati pa mapulasitiki owonongeka a petroleum, ma polyesters a dibasic acid diol ndi zinthu zazikulu, kuphatikizapo PBS, PBAT, PBSA, ndi zina zotero, zomwe zimakonzedwa pogwiritsa ntchito butanedioic acid ndi butanediol monga zopangira, zomwe zimakhala ndi ubwino wotsutsa kutentha, zosavuta kupeza zipangizo, ndi luso lokhwima. Poyerekeza ndi PBS ndi PBAT, PBSA ili ndi malo osungunuka otsika, kusungunuka kwamadzimadzi, crystallization mofulumira, kulimba kwambiri komanso kuwonongeka kwachangu m'chilengedwe.
PBSA ingagwiritsidwe ntchito pakuyika, zofunikira zatsiku ndi tsiku, mafilimu aulimi, zida zamankhwala, zida zosindikizira za 3D ndi magawo ena.
