Polymer Formers - FIZ Karlsruhe

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Polyurethane from a diisocyanate would be indexed only using the polymer type code for
Polyurethane and the polymer former code for Diisocyanate.
Polyamide with no further information would be indexed only as Polyamide (polymer type).
Aromatic polyethersulphone would be indexed as Polyethersulphone plus the chemical aspect
for Aromatic.
Searching compound(s) with function(s)
The 2nd LEVEL LINKING is used to define the function(s) of a compound or combination of
compounds.
Examples of functions which can be linked with compounds are:-
homopolymer, binary copolymer, graft copolymer, oligomer, prepolymer, polymer former,
modifying agent, all the additive functions such as filler, light stabiliser, dye, tackifier etc. and
all the catalyst functions such as catalyst support, Redox catalyst, electron donor etc.
Specific compound(s) with functions
Compound(s) can be searched with one or more function(s) linked at 2nd level of linking.
Thus, by taking some of the examples from above we can build up our search query by combining
a function at the 2nd level of linking.
Ethylene homopolymer
R00326 (2) H0000
where R00326 is Ethylene, H0000 is Homopolymer.
Maleic anhydride modifying agent
R00843 (2) H0226
where R00843 is Maleic anhydride, H0226 is Modifying agent.
Calcium carbonate filler
R01278 (2) A237
where R01278 is Calcium carbonate, A237 is Filler.