Synthesis of caffeine/Poly (vinyl alcohol) polymer with UV-protection properties

A transparent film based on a composite of polyvinyl alcohol (PVA) and caffeine was prepared for UV protection. The caffeine was extracted from ground coffee without any further purification process; in parallel, a 5.00 wt.% aqueous PVA solution was prepared. From this solution, PVA solutions with d...

• Үндсэн зохиолч: Trujillo Galarza, José Ignacio (author)
• Формат: bachelorThesis
• Хэл сонгох: eng
• Хэвлэсэн: 2023
• Нөхцлүүд: Fotodegradación; Películas poliméricas; Protección UV; Photodegradation; Polymeric-films; UV-protection
• Онлайн хандалт: http://repositorio.yachaytech.edu.ec/handle/123456789/696