Photosensitive amphiphilic high polymers and process for their production.

摘要

A photosensitive amphiphilic high polymer comprises a linear recurring unit containing an at least divalent 1st organic group (R<1>) having at least two carbon atoms and an at least divalent 2nd organic group (R<2>) having at least two carbon atoms, said organic groups R<1> and R<2> being connected to each other by a divalent linkage group formed by a reaction of an acid group (A) containing a hetero atom and a basic group (B) containing a hetero group; at least one hydrocarbon-containing group having 10 to 30 carbon atoms, which may have a substituent, being bonded to said recurring unit by a covalent bond or an ionic bond; and a dimerizable or polymerizable unsaturated bond or an orthonitrobenzyl group <CHEM> which may have a substituent, being contained in a part or the whole of said recurring units.