Roleset dissociate.01 Verbnet Class: 1 "un-associate":

Roles:

Arg0:causer of non-association, agent


Arg1:thing not associated


Arg2:separated from

Examples:

person: ns tense: ns aspect: ns voice: active form: infinitive


oddly ergative (-)
When an electric current is applied to the palladium and platinum electrodes, the heavy water did begin [*-3] to break up, or dissociate.
Arg1:	[*-3] -> the heavy water
REL:	dissociate

person: ns tense: present aspect: ns voice: active form: gerund


transitive (-)
It would go along [*-2] doing nothing but [*-3] dissociating the heavy water and then at totally unpredictable times, it would begin producing excess heat for as long as 10 or 11 hours before quieting down.
Arg0:	[*-3] -> [*-2] -> It
REL:	dissociating
Arg1:	the heavy water

person: ns tense: past aspect: ns voice: active form: full


more normal usage (-)
John dissociated himself from Mary's band of thugs.
Arg0:	John
REL:	dissociated
Arg1-REC:	himself
Arg2-from:	Mary's band of thugs

The first two usages seem to be specialized and mean something like 'fall apart'.