IUBio

APS & TEMED in acid gels

Dr S. Robertson stephenr at liverpool.ac.uk
Mon Jan 27 11:30:13 EST 1997


Hideyuki Kajiwara (kajiwara at abr.affrc.go.jp) wrote:
: In article <5cdmu9$9rf at highway.leidenuniv.nl>,
: o.meijer at chem.leidenuniv.nl wrote:

: > In article <5c5r41$rrt at light.nih.gov>, bernard at elsie.nci.nih.gov
: says...
: > 
: > >Since they only catalyse the polymerisation of the acrylamide monomer
: > >they play no real role in the eventual structure of the gel.
: >      
:  polymerisation is by radical reaction.

APS and TEMED are not strictly catalysts in this case they are initiators,
the greater the initiator concentration the more growing chains in 
solution and the shorter the eventual chain length, therefore they do
play a role in the final stucture of the gel

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