Biodegradable Polymer Materials and Their Applications in Biomedicine

Biodegradable polymer materials and their applications in biomedicine If a material is said to be biodegradable this means it is capable of being decomposed by biologic agents, especially bacteria.(1) Biodegradable polymers atomic number 18 polymers that break down and motion off their initial integrity. Polymers are substances that have a molecular(a) grammatical construction made up mainly of a large round of similar units bonded together. Biodegradable polymers are use in medical examination devices to avoid the need for a second operation to rack up them. There are many different types of polymer humiliation. Degradation is a process that deteriorates polymer properties or their external appearance, changing its properties such as tensile strength, colour, shape, etc. Degradation preserve be score by a number of factors, such as heat, oxygen, moisture, automatic stresses and other factors. Depending on the agent, the following forms of polymer degradation are s ublime: thermal, thermal oxidative, photochemical, hydrolytic, and radiation, among others.(2) ordinarily numerous types of degradation processes take station simultaneously in a polymer; for example, making a polymer into a product, it undergoes thermal, thermal oxidation, and mechanistic forms of degradation.

Thermal degradation of polymers: thermal degradation of polymers is a molecular weakening as a event of overheating. At risque temperatures the components of the long range of a function backbone of the polymer tin begin to separate (molecular scission) and react with one another to rocknroll the properties of the polymer (3) thermal degrad! ation normally results in changes to the molecular tilt of the polymer usual property changes include reduced ductility, colour changes, cracking, normal reduction in most other desirable sensible properties UV degradation of polymers: Common synthetic polymers which may be attacked include polypropylene and LDPE where tertiary carbon bonds in their string structures are the centres of attack. (4) The...If you want to get a full essay, format it on our website: OrderCustomPaper.com

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