Question

which of the following is an elastomer ​

Answer 1

Answer:

An elastomer is a polymer with viscoelasticity (i.e., both viscosityand elasticity) and has very weak intermolecular forces, generally low Young's modulus and high failure strain compared with other materials.[1] The term, a portmanteau of elastic polymer,[2] is often used interchangeably with rubber, although the latter is preferred when referring to vulcanisates.[3] Each of the monomers which link to form the polymer is usually a compound of several elements among carbon, hydrogen, oxygen and silicon. Elastomers are amorphous polymersmaintained above their glass transition temperature, so that considerable molecular reconformation, without breaking of covalent bonds, is feasible. At ambient temperatures, such rubbers are thus relatively compliant (E ≈ 3 MPa) and deformable. Their primary uses are for seals, adhesives and molded flexible parts. Application areas for different types of rubber are manifold and cover segments as diverse as tires, soles for shoes, and damping and insulating elements. The importance of these rubbers can be judged from the fact that global revenues are forecast to rise to US$56 billion in 2020.[4][5]

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Answer 2

Answer:

a natural or synthetic polymer having elastic properties, e.g. rubber.