May 5, 2011  4  US 2011/0104454 Al  that is substituted include a methyl group, an ethyl group, a  propyl group and a butyl group that are substituted with a  methoxy group, a hydroxyl group, a chlorine atom, a bromine  atom, a fluorine atom or the like.  [0042]  R $^{1 }$is preferably a hydrogen atom, a methyl group, or  a methyl group that is substituted with a hydroxyl group or a  bromine atom.  [0043]  R $^{2 }$is preferably a hydrogen atom, a methyl group, or  a methyl group that is substituted with a hydroxyl group or a  bromine atom.  [0044]  R $^{3 }$is preferably a hydrogen atom.  [0045]  R 4  is preferably a hydrogen atom.  [0046]  Rs is preferably a hydrogen atom, a methyl group, or  a methyl group that is substituted with a hydroxyl group or a  bromine atom.  [0047]  R  $^{6 }$is preferably a hydrogen atom, a methyl group, or  a methyl group that is substituted with a hydroxyl group or a  bromine atom.  [0048]  Further, in view of the flexibility of the specific  polymer, it is preferred that both of R 1  and Rs are each a  hydrogen atom.  [0049]  When X, Y and Z are each a divalent organic group  that may be substituted or unsubstituted, examples thereof  include an aliphatic hydrocarbon group that may be substi› tuted or unsubstituted, and an aromatic hydrocarbon group  that may be substituted or unsubstituted.  [0050]  X, Y and Z are preferably a single bond, an ester  group, an amide group or an ether group, more preferably a  single bond, an ester group or an amide group, and yet more  preferably a single bond or an ester group.  [0051]  Further, in one preferred embodiment, each of L  1  and  L2  is a linear, branched or cyclic alkylene group, an  aromatic group, or a combination of these groups. The com› bination of an alkylene group and an aromatic group may  include an ether group, an ester group, an amide group, a  urethane group or a urea group in between. In particular, L  1  and L  $^{2 }$preferably include the total number of carbon atoms of  1 to 15, and are preferably not substituted. The total number  of carbon atoms here refers to the total number of carbon  atoms included in a substituted or unsubstituted divalent  organic group that is represented by, for example, L  1 .  The  same applies to L  2 .  [0052]  Specific examples of the divalent organic group  include a methylene group, an ethylene group, a propylene  group, a butylene group, a phenylene group, these groups  substituted with a methoxy group, a hydroxyl group, a chlo› rine atom, a bromine atom, a fluorine atom or the like, and a  combination of these groups.  [0053]  In particular, in the unit represented by Formula (B),  from the viewpoints of a suitable acidity (without decompos› ing other functional groups) and hydrophilicity in aqueous  alkali solution whereas easy change to hydrophobicity due to  a cyclic structure when water is dried, an embodiment is  preferred in which W represents a carboxylic group and a  four-to eight-membered ring structure is included in a con› necting portion to W ofL 2 .  Herein, the four-to eight-mem› bered ring structure includes a cyclobutyl group, a cyclopen› tyl group, a cyclohexyl group, a cycloheptyl group, a  cyclooctyl group, and a phenyl group. Among them, a cyclo› hexyl group and a phenyl group are preferred. In order words,  in this embodiment, a terminal of the unit represented by  Formula (B) is an alicyclic carboxylic group.  [0054]  Further, in the unit represented by Formula (B),  from the viewpoints of a suitable acidity (without decompos- ing other functional groups) and hydrophilicity in aqueous  alkali solution whereas easy change to hydrophobicity due to  a long chain alkyl group structure when water is dried, an  embodiment is preferred in which V represents a carboxylic  group and a chain length of L  $^{2 }$is preferably from 6 atoms to  18 atoms. Herein, a chain length of L  $^{2 }$represents a distance  between X and Win Formula (B) andX and Ware preferably  separated in a range of from 6 atoms to 18 atoms. A chain  length ofL  $^{2 }$is more preferably from 6 atoms to 14 atoms, and  further preferably from 6 atoms to 12 atoms.  [0055]  Further, in the unit represented by Formula (B), an  embodiment is also preferable in which W is a carboxylic  group and X and L  $^{2 }$are a single bond.  [0056]  In this embodiment, immediately after forming a  metal pattern, adhesiveness of the metal pattern to a substrate  can be increased, and further, resistance to water of a layer to  be plated can be increased.  [0057]  The specific polymer in the invention may further  contain the unit represented by the following Formula (C).  (C)  X  I  L3  I  V  [0058]  In the unit represented by Formula (C), V represents  a non-dissociative functional group that forms interaction  with a plating catalyst or a precursor thereof. Examples of the  non-dissociative  functional  group  include  the  group  described above. Among them, a cyano group or an ether  group is preferable as V from the viewpoints of high polarity  and high absorption ability to a plating catalyst.  [0059]  In Formula (C), R  $^{6 }$represents a hydrogen atom, or a  substituted or unsubstituted alkyl group; X represents a single  bond, a substituted or unsubstituted divalent organic group,  an ester group, an amide group, or an ether group; and L 3  represents a single bond, or a substituted or unsubstituted  divalent organic group. Herein, R  $^{6 }$is preferably a hydrogen  atom, a methyl group, or a methyl group substituted with a  hydroxyl group or a bromine atom.  [0060]  In a case in which X represents a substituted or  unsubstituted divalent organic group, examples of the diva› lent organic group include a substituted or unsubstituted ali› phatic hydrocarbon group, a substituted or unsubstituted aro› matic hydrocarbon group.  [0061]  X is preferably a single bond, an ester group, an  amide group, an ether group, more preferably a single bond,  an ester group, or an amide group, and most preferably a  single bond or an ester group.  [0062]  L 3  represents a single bond, or a substituted or  unsubstituted divalent organic group, and among these, the  divalent organic group is preferred. An embodiment is pref› erable in which the substituted or unsubstituted divalent  organic group represented by L 3  represents a straight,  branched, or cyclic alkylene group, an aromatic group, or a  combination of these groups. Further in the case of constitut› ing the combination, an ether group, an ester group, an amide  group, a urethane group, or a urea group may lie between the  alkylene group and aromatic group. Among them, L $^{3 }$is pref-