Plastics Flashcards
1
Q
A polymer does not change shape on heating what term is used to descrie this type of polymer
A
thermosetting plastic
2
Q
During the manufacturing process hydrogen gas ii s added to the reaction when the polymer chains are at the correct length. Suggest why the addition of hydrogen gas stops the production of polyethene
A
The hydrgen adds across the carbon to carbon double bond of the monomer preventing polymerisation from taking place
