In Chopin, there don't have to be any markings to justify rubato, since he was notoriously fickly with making any marks at all. The portato (not portamento) markings are definitely to be played in the rubato style, since he wrote those for poetic emphasis!Walter Ramsey
In my Dover edition, this Chopet is marked legato almost all the way through, with the exception of measure 57, beats 3 and 4, which are marked portamento.Is this even possible at half=112? There are no markings to slow down, but at that speed I can't imagine that there'd be much of a difference between legato and staccato...to the listener, it'd be over before you got a chance to even notice it.Phil