Thereby, metal-containing catalysts such as tin (II) 2-ethylhexanoate, which is in conventional extrusion processes required to raise the polymerization rate of the lactones to an acceptable efficient level, can be avoided.
Ngaleyo ndlela, izakhi ezinamathelisi ezinsimbi ezifana ne-tin (II) 2-ethylhexanoate, esezinqubo ezijwayelekile zokuxhumeka ezidingekayo ukuphakamisa izinga le-polymerization lama-lactone endaweni ephumelelayo eyamukelekayo, ingagwenywa.