Photodegradation and photostabilization of polymers, especially ...
WebAug 23, 2013 · Photodegradation includes photodissociation, the breakup of molecules into smaller pieces by photons. It also includes the change of a molecule's shape to make it irreversibly altered, such as the denaturing of proteins, and …
Photodegradation - Wikipedia
WebPhotodegradation is the alteration of materials by light. Commonly, the term is used loosely to refer to the combined action of sunlight and air, which cause oxidation and hydrolysis. Often photodegradation is intentionally avoided, since it …
Photodegradation - an overview | ScienceDirect Topics
WebPhotodegradation is a process that changes the basic structure of a polymer by cross-linking, chain scission, and oxidative processes. The first two processes take place mostly in the amorphous part of the polymeric material and the photooxidation process is …
Photodegradation of Anti-Inflammatory Drugs: Stability Tests …
WebOct 2, 2021 · Photodegradation of drugs represents a problem that has emerged in recent decades, and the definition of photoprotective systems is of fundamental importance in the modern pharmaceutical industry. Several strategies have been proposed to improve the tendency of some drugs to degrade when exposed to light.
Photocatalytic Degradation of Plastic Waste: A Mini Review
WebJul 30, 2021 · Photodegradation has attracted our attention as it strikes an excellent balance of energy consumption, time consumption, and cost-effectiveness, holding great promise to end plastic wastes. Most importantly, it can capitalize on abundant and renewable solar energy.
Photodegradation - an overview | ScienceDirect Topics
WebPhotodegradation is the process by which the absorption of photons—particularly those with wavelengths in the UV–visible spectrum—causes a molecule to degrade. During the process, the species evolve and turn into new ones.
Photodegradation of Materials: An Overview | SpringerLink
WebPhotodegradation. Photostability. 1 Introduction. Degradation of both natural and synthetic polymers occurs under the influence of environmental factors, such as light, temperature, moisture and pollutants and therefore limits their service lifetime.
Photodegradation - an overview | ScienceDirect Topics
WebPhotodegradation is one of the most destructive ways for pesticides to decrease their half-lives in the environment and can be generated in the plant, soil surface, and air (Katagi, 2004 ). During the photolysis, the radiant energy in the form of photons breaks the chemical bonds directly or indirectly.
Polymer Photodegradation: Mechanisms and experimental …
WebOverview. Authors: Jan. F. Rabek. 7737 Accesses. 296 Citations. 4 Altmetric. Search within this book. Table of contents (10 chapters) Front Matter. Pages i-xvi. Download chapter PDF. Physical aspects of the photodegradation of polymers. Jan. F. Rabek. Pages 1-23. Download chapter PDF. Photochemical aspects of degradation of polymers. Jan. F. Rabek.
Disentangling Biological Transformations and Photodegradation …
WebDec 9, 2023 · Since photodegradation is an abiotic process, identifying molecular formulas that are added and removed with sunlight exposure in the marine environment is relatively straightforward. Assessing biological formation and transformation, however, is …
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