WebJan 25, 2024 · Bisphenol A (BPA) has been widely used as raw material of polycarbonate plastics and epoxy resins, which are commonly found in compact discs, food can linings, and plastic drink bottles (Tsai et al., 2009).BPA is considered as potential hazardous organic compound because it can cause damage to aquatic organisms and has endocrine … WebIn this study, the structure and properties of bisphenol A polycarbonate (BPA-PC) after UVB-313 radiation were investigated. When BPA-PC was exposed to ultraviolet (UV), this polymer showed two different degradation mechanisms: photo-Fries rearrangement and photo-oxidation. The interpretation of the observed chemical degradation was based on …
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WebMay 1, 2024 · Bisphenol A polycarbonate (BPA-PC) is a kind of widely used engineering plastics. However, excessive usage causes the production of plastic wastes, following … WebMay 5, 1996 · This chapter presents an up-to-date review of the literature on the thermal and photodegradations of bisphenol A polycarbonate as well as new results from my laboratory. The areas described include hydrolysis, thermal and thermal oxidative reactions, and photodegradation. Special emphasis is given to the mechanisms of these reactions and … how far down to place logo on back of shirt
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WebMar 1, 2007 · Scheme 2. Photo-oxidation of bisphenol A polycarbonate [4]. Factor et al. [15] characterized nearly 40 degradation products in a bisphenol A polycarbonate sample which was placed outdoors for 4 years. The products were predominantly photo-oxidation … Polymer Degradation and Stability 15 (1986) 1-13 Dual Photo-chemistries in … The CL intensity can be expressed in the form (1) I=G·φ·R where R= the rate of the … Solutions of the unfractionated polycarbonate samples were prepared in … In the initial stage of the thermal degradation of PC (400–500 °C) are … The photochemistry of bisphenol-A polycarbonate reconsidered 479 reached … Most previous reports 1–19 on the photo-ageing of bisphenol-A polycarbonate … The photochemical and thermal behaviour of bisphenol-A polycarbonate (PC) and … Polymer Degradation and Stability 35 (1992) 235-247 Wavelength sensitivity of … The weak chemiluminescence observed when partially oxidised samples of … WebApr 11, 2024 · Bisphenol A polycarbonate (PC) was chosen as the representation of polyester resins for investigating the effect of aggregative state on hydrolytic stability of this kind of materials. WebOct 25, 2024 · A novel bacterium, Bacillus megaterium strain ISO-2, capable of the degradation of bisphenol A (BPA), was isolated from wastewater collected from a polycarbonate industry. The bacterium, which was grown on mineral salts medium supplemented with yeast extract, exhibited complete BPA removal from 5 mg L−1 BPA … hierarchy in goldman sachs