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Author Nair, Prabha D.
Source Sree Chitra Tirunal Institute for Medical Sciences & Technology
Content type Text
Publisher Clinical Materials
File Format PDF
Language English
Subject Domain (in DDC) Technology ♦ Medicine & health ♦ Incidence & prevention of disease
Subject Domain (in MeSH) Macromolecular Substances ♦ Biomedical and Dental Materials ♦ Chemicals and Drugs ♦ Physical Phenomena ♦ Biological Sciences ♦ Environment and Public Health ♦ Health Care
Subject Keyword Sterilization
Abstract Poly(ethylene terephthalate) (PET) was steam sterilized by autoclaving for 15, 30 and 60 min. The thermal properties, T m, delta-H and percent crystallinity were determined using differential scanning calorimetry. Molecular weight distribution was determined using gel permeation liquid chromatography. Crystallinity of PET was also monitored by infrared spectrophotometry. The analyses indicate that that chain scission and cyclization reactions take place in PET, forming cyclic oligomers, that can migrate to the polymer surface and which may affect long term performance of PET.
Education Level UG and PG
Learning Resource Type Article
Educational Framework Medical Council of India (MCI)
Journal Clinical materials
Volume Number 5
Issue Number 1
Page Count 38
Starting Page 6
Ending Page 43