▎ 摘　　要

NOVELTY - Siloxane polymer (I) is new. USE - Siloxane polymer for use in silicone compositions such as surfactant composition, a sizing composition for a matrix reinforcement material (a silicaeous material, such as silica or sand; glass, such as glass fiber, glass particles, or glass beads; a metal, such as silver or titanium; a metal oxide, such as zinc oxide or titanium dioxide; carbon, such as carbon nanoparticles, carbon nanotubes, graphite, graphene, diamond, and fullerenes, or any combination of the foregoing), a coating composition, a sealant composition, a grease composition, a defoaming composition, a dry-cleaning composition, a rubber composition, an ophthalmic composition, a personal care composition, a lubricant composition, a personal lubricant composition, a functional fluid, such as a brake fluid, a mold release composition, a gel composition, or an electronics encasement composition, which are used in manufacturing article such as electrical insulating article, an electronic device, a gasket, a seal, a pad, a mold (such as, for example, a dental mold), a paper article (such as a sheet), a textile article, a fire stop, a microfluidic device, a bandage, a dressing for a wound, a scar treatment sheet, a breast implant, a testicular implant, a pectoral implant, a contact lens, an ophthalmic tube, an ophthalmic stent, or a nipple, such as a nipple on a baby bottle. ADVANTAGE - The silicone polymers that are derived from renewable sources and that are built from difunctional building blocks that are easy to react at the silicon atoms of the polymer. DETAILED DESCRIPTION - Siloxane polymer of formula (I) is new, R1, R2, R3, and R4 = H, 1-14C hydrocarbyl group, or 1-14C hydrocarbyloxy group; Rx and Ry = -(CH2) nC(=O)-R5-; R5 = -O-R6, -NH-R7, or -N(R8)(R9); R6, R7, R8, and R9 = 1-25C alkyl, 2-25C alkenyl, or 1-101C heteroalkyl, each of which is optionally substituted one or more times by substituents selected independently from Rz; Rz = halogen atom, -OH, -NH2, 1-6C alkyl, 2-6C alkenyl, 1-12C heteroalkyl, or 6-14C aryl, where any two -OH substituents on immediately adjacent carbon atoms may optionally combine to form an epoxy group; n = 9-17; and k = 5-5000.