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51.1 MB (6.4 MB compressed)
5187 x 3440 pixels
43.9 x 29.2 cm ⏐ 17.3 x 11.5 in (300dpi)
R.E. LITCHFIELD / SCIENCE PHOTO LIBRARY R.E. LITCHFIELD / SCIENCE PHOTO LIBRARY
False-colour scanning electron micrograph to show the construction of a knitted polyester fabric. Polyesters are formed by the condensation reaction between polyhydric alcohols and polybasic acids. Linear polyesters are saturated thermoplastics and linked by dipole-dipole attractions as the carbonyll groups are polarised. They are extensively used as fibres. Magnification: x2 at 35 mm size.
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