▎ 摘　　要

NOVELTY - Functionalized conjugated diene rubber is claimed. The functionalized conjugated diene rubber is functionalized synthetic rubber whose molecular main chain is mainly composed of conjugated diene cis structural units, and the end of the molecular chain contains dithiocarbamate, where the cis structural unit content of the conjugated diene in the molecular main chain is higher than 96%. USE - The functionalized conjugated diene rubber is useful in preparing functionalized conjugated diene rubber composite materials (claimed). ADVANTAGE - The functionalized conjugated diene rubber: is narrow distribution functionalized synthetic rubber terminated with dithiocarbamate; used dithiocarbamate groups, which activate and accelerate the crosslinking speed of the crosslinking agent sulfur and the molecular chain of conjugated diene rubber under the action of hot pressing, can interact with various reinforcing fillers including carbon black or white carbon black and other nano-reinforcing agents used in tire products, improve the dispersion of reinforcing fillers in the diene rubber matrix and the movement ability of passivated rubber molecular chain ends, reduces the frictional heat generation at the molecular chain ends of the conjugated diene rubber and realizes the goal of improving the processing performance of tire products and reducing dynamic heat generation; has wide applicability, low cost, easy industrialization and good economic and social benefits. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: Preparing functionalized conjugated diene rubber, comprising S1, preparing rare earth catalyst under the protection of an inert gas, where the rare earth catalyst is includes a and c in the following components, where one or both of b and/or d in the following components can also be adding, component a, rare earth compound, component b, optionally added or not optionally added, is a conjugated diene; and component c, aluminum compound including at least one mixture with AlR and/or AlHR structures, R is methyl, ethyl, isobutyl, component d is halogen-containing compound including alkylaluminum halides of formula (AlRX), sesquialkylaluminum of formula (AlRX), and halogenated hydrocarbons of formula RX, R is ethyl, propyl, isopropyl, isobutyl, tert-butyl, S2 adding non-polar organic solvent and a certain quality of conjugated diene into the polymerization reactor, and heating to a constant temperature of 30-100 ℃, S3 adding the catalyst prepared in S1 into the polymerization reactor to initiate the polymerization reaction of conjugated diene for 30 minutes to 6 hours, S4, adding the reagent containing dithiocarbamate to the polymerization solution in step S3, and continuously reacting for 30 minutes - 12 hours, and S5, adding terminator to the polymerization reaction solution to terminate the polymerization, coagulating, and drying;322233 Functionalized conjugated diene rubber composite material, comprising x pts. wt. functionalized conjugated diene rubber, 100-x pts. wt. rubber, 2-8 pts. wt. zinc oxide, 0.5-3 pts. wt. stearic acid, 0.5-4 pts. wt. anti-aging agent, 1-50 pts. wt. softener, 30-100 pts. wt. reinforcing filler, 0.2-5 pts. wt. accelerator, and 0.5-5 pts. wt. sulfur; and Preparing functionalized conjugated diene rubber composite material, comprising taking the prepared functionalized conjugated diene rubber as rubber matrix, using together with other rubbers, together with the anti-aging system, vulcanization system, softening system and reinforcement system, and adopting the mixing and vulcanization process to prepare the functionalized conjugated diene rubber composite material containing dithiocarbamate, where the preparation method is based on the functionalized conjugated diene rubber. X = bromine or chlorine, preferably chloromethylsilane, chlorotrimethylsilane, dichlorodimethylsilane, trichloromethylsilane or silicon tetrachloride; and x = 5-100.