US 2014/0199617 Al  52  Jul. 17, 2014  -continued  -continued  [0381]  The specific examples of the repeating units having  a group capable of decomposing by the action of an acid to  generate an alcoholic hydroxyl group are shown below. In the  formulae, Xa$_{1 }$ represents a hydrogen atom, CH$_{3}$ ,  CF$_{3 }$ or  CH$_{2}$OH.  lo  lo  /oD  lo~  lo~lo~  1j)1)~"  /o~/0’0  lo\) lo~  /oJyO  /o{)  lo~/o~  /o  !\) 