"Jim Egan" <jwe@lamotte.com> wrote in message
news:11uq43qsgm6dhdf@corp.supernews.com...

Does anyone know where to find the structure of the polymer
that forms when cyanuric acid reacts with melamine?

[hanson]
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=16432575&dopt=Citation
"A hydrogen-bonded bimolecular network formed between
cyanuric acid (CA) and melamine (M), CA.M, has been
prepared by a surface-based self-assembly process; the
monolayer CA.M network is prepared under ultra-high vacuum
conditions either by sequential deposition of CA followed by M,
or through simultaneous deposition of the component molecular
species. " ---- Google for it. Interesting subject ----

Cyanuric acid: 1,3,5 Trihydroxy-s-Triazine
3 O=C(NH2)2 ---> (HO)3C3N3 + 3 NH3
From dry distillation of Urea (with ZnCl2)

Melamine: 2,4,6-Triamino-s-Triazine
3 H2N-CN ----> (H2N)3C3N3
From Trimerisation of Cyanamide

As you can see from the very similar structures of M an CA
all kinds of polymers can form even from a 1:1 combo:

1) flat sheets and 3D structures via the CA-OH....NH2-M
the hydroghen bridges from the "arms" off the otherwise
identical aromatic C3N3 bodies, under mild conditions.
2) Hexagonal structures by dehydration of CA-OH....NH2-M
into CA-N(-)<H(+)-M bonds with loose Protons and/or
conjugated CA-N=M- or -CA=N-M structures under more
energetic conditions. Potential organic (semi) conductors
and bio specific protein adsorbents.

Draw the possibilities on paper. Too difficult in NG-ASCII.
Enjoy chemistry!.... but ***** enviros!
ahahaha... ahahanson