POS9-0290
Research on Degradation Technology of Biodegradable Plastics (PBAT) Using Photoacid Generators (PAGs)
When and Where
Nov 30, -0001
12:00am - 12:00am
Presenter(s)
Baek MinSoo (Pusan National University, Korea Research Institute of Chemical Technology)
Co-Author(s)
Abstract
Due to its excellent craftsmanship and biodegradability, Helicopter Polypropylene Adipate Terephthalate (PBAT) is being decomposed as a key material in industrial fields such as agricultural grass etching films, disposable plastic bags, and food packaging. However, the degradation rate of PBAT varies significantly depending on component pretreatment conditions or external environments, creating boundaries to precisely control the degradation timing in actual applications.
To overcome these obstacles, this study proposes a novel problem-solving control strategy in which a Photoacid Generator (PAG) is placed in a PBAT matrix as a latent catalyst, allowing the user to actively trigger exchange via UV irradiation at a specific time (on-demand). To this end, the PBAT/PAG acid-bonded film was manufactured to withstand solvent casting and hot pressing processes, and the system was designed so that strong acid released from the PAG uninterrupted upon UV irradiation slows down the ester bonds of the PBAT. As a result of quantitatively tracking degradation behavior through thumbprint (GPC) analysis, a positive response rate of 84.5% was ultimately observed through UV irradiation and aging condition control. Additionally, X-ray photoelectron spectroscopy (XPS) analysis was performed to quantitatively determine the compound state and structural location of functional groups on the polymer surface corresponding to component replacement.
To overcome these obstacles, this study proposes a novel problem-solving control strategy in which a Photoacid Generator (PAG) is placed in a PBAT matrix as a latent catalyst, allowing the user to actively trigger exchange via UV irradiation at a specific time (on-demand). To this end, the PBAT/PAG acid-bonded film was manufactured to withstand solvent casting and hot pressing processes, and the system was designed so that strong acid released from the PAG uninterrupted upon UV irradiation slows down the ester bonds of the PBAT. As a result of quantitatively tracking degradation behavior through thumbprint (GPC) analysis, a positive response rate of 84.5% was ultimately observed through UV irradiation and aging condition control. Additionally, X-ray photoelectron spectroscopy (XPS) analysis was performed to quantitatively determine the compound state and structural location of functional groups on the polymer surface corresponding to component replacement.
