| abstract |
[PROBLEMS] To provide a rubber composition which, when added to a rubber composition, improves the wet grip performance of the cured product and can greatly reduce the loss of hysteresis, and also provides a silane-modified polymer imparting a rubber composition capable of realizing a desired low- Provide. A silane-modified polymer containing at least one selected from the structural units represented by the formulas (1) and (2). R 1 represents, independently of each other, an alkyl group having 1 to 10 carbon atoms or an aryl group having 6 to 10 carbon atoms, and R 2 represents an alkyl group having 1 to 10 carbon atoms or an aryl group having 6 to 10 carbon atoms, Independently of one another, an alkyl group of 1 to 10 carbon atoms or an aryl group of 6 to 10 carbon atoms, and m represents an integer of 1 to 3.) |