Organic polymer having epoxy-and/or oxetanyl-containing silicon group at the end and process for producing the same

An organic polymer having an end structure expressed by general formula (2):

• (wherein R1 represents an alkyl group having a carbon number in the range of 1 to 20, an aryl group having a carbon number in the range of 6 to 20, an aralkyl group having a carbon number in the range of 7 to 20, or a triorganosiloxy group expressed by (R′)3SiO—;
• R2 represents an alkyl group having a carbon number in the range of 1 to 20, an aryl group having a carbon number in the range of 6 to 20, an aralkyl group having a carbon number in the range of 7 to 20, an alkoxy group having a carbon number in the range of 1 to 20, or a triorganosiloxy group expressed by (R′)3SiO—;
• if the number of R1s or R2s is at least two, they may be the same or different;
• R′ represents a monovalent hydrocarbon group having a carbon number in the range of 1 to 20 and the three R′s may be the same or different;
• R3 represents a divalent organic group having a carbon number in the range of 1 to 20 and containing at least one constituent atom selected from the group consisting of hydrogen, oxygen, and nitrogen;
• and m represents an integer in the range of 0 to 20), and
• wherein the main chain skeleton of the organic polymer comprises a saturated hydrocarbon polymer selected from the group consisting of polyisobutylene, hydrogenated polyisoprene, hydrogenated polybutadiene, and copolymers thereof.

An organic polymer having an end structure expressed by general formula (3):

• (wherein R1 represents an alkyl group having a carbon number in the range of 1 to 20, an aryl group having a carbon number in the range of 6 to 20, an aralkyl group having a carbon number in the range of 7 to 20, or a triorganosiloxy group expressed by (R′)3SiO—;
• R2 represents an alkyl group having a carbon number in the range of 1 to 20, an aryl group having a carbon number in the range of 6 to 20, an aralkyl group having a carbon number in the range of 7 to 20, an alkoxy group having a carbon number in the range of 1 to 20, or a triorganosiloxy group expressed by (R′)3SiO—;
• if the number of R1s or R2s is at least two, they may be the same or different;
• R′ represents a monovalent hydrocarbon group having a carbon number in the range of 1 to 20 and the three R′s may be the same or different;
• R4 represents a divalent organic group having a carbon number in the range of 1 to 20 and containing at least one constituent atom selected from the group consisting of hydrogen, oxygen, and nitrogen;
• and m represents an integer in the range of 0 to 20), and
• wherein the main chain skeleton of the organic polymer comprises a saturated hydrocarbon polymer selected from the group consisting of polyisobutylene, hydrogenated polyisoprene, hydrogenated polybutadiene, and copolymers thereof.

An organic polymer having an end structure expressed by general formula (4):

• (wherein R1 represents an alkyl group having a carbon number in the range of 1 to 20, an aryl group having a carbon number in the range of 6 to 20, an aralkyl group having a carbon number in the range of 7 to 20, or a triorganosiloxy group expressed by (R′)3SiO—;
• R2 represents an alkyl group having a carbon number in the range of 1 to 20, an aryl group having a carbon number in the range of 6 to 20, an aralkyl group having a carbon number in the range of 7 to 20, an alkoxy group having a carbon number in the range of 1 to 20, or a triorganosiloxy group expressed by (R′)3SiO—;
• if the number of R1s or R2s is at least two, they may be the same or different;
• R′ represents a monovalent hydrocarbon group having a carbon number in the range of 1 to 20 and the three R′s may be the same or different;
• R5 represents a divalent organic group having a carbon number in the range of 1 to 20 and containing at least one constituent atom selected from the group consisting of hydrogen, oxygen, and nitrogen;
• and m represents an integer in the range of 0 to 20), and
• wherein the main chain skeleton of the organic polymer comprises a saturated hydrocarbon polymer selected from the group consisting of polyisobutylene, hydrogenated polyisoprene, hydrogenated polybutadiene, and copolymers thereof.