TH27824A - Anionic copolymerization of conjugated diene and vinylarine with tetrahydropyranymethan alkyl ether. Well - Google Patents

Abstract

DC60 (18/09/46) polymer preparation process By polymerization (A) 50 to 100 percent by weight of at least 1 monomer (B) 0 to 50 percent by weight of ethylene monomer. At least 1 unsaturated monomer, the above polymerization. Proceed in an inert solution in the form of a catalytic system consisting of (a) at least one anionic substrate, which is required to include: With a lithium derivative, (b) at least one modifier is a tetrahydropyranyl ether group. By polymerization: (A) 50 to 100 percent by weight of at least 1 monomer diene monomer (B) 0 to 50 percent by weight of ethylene monomer. At least 1 unsaturated polymer, the above polymerization. Proceed in an inert solution in the form of a catalytic system consisting of (a) at least one anionic substrate, which is required to include: With a lithium derivative, (b) at least one modifier would be a tetrahydropyranyl ether group:

Claims (9)

1.Process for the preparation of polymers by polymerization of: (A) from 50 to 100% by weight of at least 1 monomer diene monomer ( B) From 0 to 50% by weight of at least 1 unsaturated ethylene monomer, the above polymerization was performed in an inert solution with The catalytic system is included, which includes: (a) at least one anionic substrate, which must contain a lithium derivative (b), at least one modifier belongs to the E. THER: The above process characterized by that (b) is chosen from an ether with the general formula as follows (I) (chemical formula) (I) where: (a) the number of R from 1 to 2 is equal to -CH2-O-R1, others are equal to H (b) R1 would be C1-C10, preferred C1-C5, radical hydrocarbons, but preferable to choose from methyl and ethyl. T 2. Process according to claim 1, which has the characteristics that Diene Monomer (A) is selectable from isoprene and 1,3-butadiene. 3. Process according to claim 2, which has the characteristics that Diene monomer (A) is 1,3-butadiene. 4. Process according to claim 1, which is characterized by that Unsaturated ethylene monomer (B) is selected from aromatic vinyl compounds. 5. Process according to claim 4, which is characterized by that the aromatic vinyl compound (B) is styrene. 6. The process of claim 1, which is characterized by that only 1 R is equal to -CH2-O-R1, the other is equal to H. 7. Process according to claim 1, which is characterized by that the CH2-O-R1 group will be the position. Alpha and oxygen tetrahydropyrene 8. Process according to claim 7, which is characterized by that R1 is derived from -CH3 and -C2H5. 9. Process according to claim 8, which is characterized by that R1 is -CH3.