condensation polymers Flashcards
what is a condensation reaction
whe ntwo molecules react together and a small molecule often water or hcl is removed
what are condensation polymers usually made from
two different monomers with different functional groups
what is a polyester
it an polymer with ester linkage
how are they made
reacting a dicarboxylic acid and alchodiol
how is terylene formed
with benzene 1,4 dicarboxylic acid and ethane 1,2diol
how is an amide formed
when a carboxylic acid reacts with an amine
what is the linkage like
the polypeptide link conh
what must the carboxylic acid have and the amine have
it must be a dicarboxylic acid and a diaminoalkane
how is nylon made
reacting 1,6 diaminohexan with hexan1,6dicarboxylic acid
what makes the recation go faster
if diacid chloride is added rather than di carboxylic acid and hcl is eliminated
what is Kevlar made from
1,4 diamine and benzene 1,4 dicarboxylic acid
why are the structure of nylon and Kevlar different
there are rigid benzene rings in Kevlar but notnylon
why is Kevlar rigid
due to rigid chains and their ability to lie flat so the rings can pack together and held together by strong intermolecular forces
where is Kevlar used
in bullet proof clothing, in oven gloves
what is polypeptide
made from a single monomer amino acid to form the conh group
