Ring-opened polymer

A ring-opened polymer prepared by reacting at least one pericyclic olefin selected from the group consisting of formulae (I) and (II) through ring-opening metathesis polymerization to form an unsaturated polymer;

• and then subjecting the unsaturated polymer to hydrogenation
• wherein
• A and B are the same or different and are independently selected from the group consisting of halogen, hydrogen, C3-20 cyclic or pericyclic alkyl, C1-20 linear and branched alkyl, C6-20 aryl, C7-20 arylalkyl, C7-20 alkylaryl, silyl, alkylsilyl, germyl, alkylgermyl, alkoxycarbonyl, acyl, and a heterocylic group;
• or, A and B are linked together to form a C3-20 saturated or unsaturated cyclic hydrocarbon group or a substituted or unsubstituted heterocyclic group;
• C is selected from the group consisting of oxygen, sulfur,
• —CH2—, and —SiH2—,
• wherein each R1 is independently selected from a group consisting of C1-20 alkyl and phenyl;
• each R is independently selected from a group consisting of hydrogen, halogen, and C1-20 alkyl;
• and
• each n is an integer from 1 to 6.