rd university of diyala 3 year polymers college of engineering assist lecturer abbas albawee department of lecture 1 2018 2019 materials eng 1 introduction polymer structure and terminology learning objectives ...
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...Rd university of diyala year polymers college engineering assist lecturer abbas albawee department lecture materials eng introduction polymer structure and terminology learning objectives define be familiar with general properties explain the difference between thermoplastic thermosetting elastomeric greek word poly many mer unit units term denotes a molecule made up by repetition some simpler monomer repeating is usually based on carbon backbone are found in nature as proteins cellulose silk or synthesized like polyethylene polystyrene nylon natural can also produced synthetically such rubber polyisoprene there that contain only hydrogen for example polypropylene polybutylene polymethylpentene even though basic makeup other elements involved oxygen chlorine fluorine nitrogen silicon phosphorous sulfur molecular polyvinyl chloride pvc contains teflon polyesters polycarbonates vulcanized thiokol e g pe vinyl instead having backbones have these considered inorganic one most famous silly ...