Synthetic polymers contain linkages which are present in natural polymers also , for example nylon (a synthetic polymer) contains pep-tide (also called amide) linkage and proteins also contain the...
Silk would conform to this need. usually the silk from the silkworm. But some challenging items have been woven from spider silk.[In Madaskar a cloth measuring 11' by 4' was woven by 82 people over a...