Polymers

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Polymers

1.Polymers are（）molecules composed of many mers bonded together.2.Monomers used for producing polymers should be（）.3.Polymers with high molecular weights have（）.4.Usually, polymers have the structures of（）, and various isomeric configurations5.Semicrystalline polymers usually are transparent.6.Rapid cooling of polymers could lead to order arrangement of chains for crystallization.7.Examples of common thermoplastic polymers include（）.8.Most polymers are flammable in their pure form, except（）.9.Common polymers, such as PE, PP, PVC, PSt, nylon, and PET have linear structures.10.Polymers transmit heat mainly through free electrons.