They can be distinguished by looking at a cross-section. Question: Write a caption for each of the figures given as figure (a-d). The structure of a polymer can be described as resembling numerous beads on a string, with the beads representing the individual units that are joined together. Synthetic fibers are made from small molecules synthesized polymers. Synthetic fibres are made by very small chemical units joined repeatedly. Nylon fibres are used for making toothbrush bristles. For example, man-made synthetic fibres such as rayon, nylon, acrylic, etc. In other words, they are safe to consume. Synthetic fibres are made only from polymers found in natural gas and the by-products of petroleum. Rayon, nylon, polyester, acrylic, and spandex are examples of synthetic fibres. Cotton is made up of large number of glucose units. 0.4 Could you split up the yarn into thin strands? Polyester retains its shape and remains crisp. Rayon clothes are, therefore, preferred over other synthetic fibres in summer. They may be entirely synthetic or semisynthetic. Nylon. Synthetic fibres are used for making clothes and many other useful things. It has excellent elasticity, which makes it suitable for use in clothes that require snug fitting. These are made by the process of polymerization. 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