Naming structures

As if this could not get any harder, I am now as confused as I ever was on the inorganic part of the class...... and you seem to be the only one that exlpain things in a way that I understand.

1. name this compound by following the IUPAC system. It seems to me like the longest chain is 11 (which I don't know what to call) and then the C4 with the other CH3 coming off of it,dont know that is. (I think I might be confusing myself)

          C
           |
C        C
|         |
C-C-C-C-C-C-C
    |      |     |
   C     C    C
           |     |
          C    C
           |     |
          C    C-C
           |     |
          C    C



THEN ALSO:
what polymer can be made from the following molecule? I have been trying to figure this one out for about 4 days now. I am so lost

       Cl
        |
C-C=C-Cl