RU2001117824A

RU2001117824A - Vinylcyclohexane block copolymers

Info

Publication number: RU2001117824A
Application number: RU2001117824/04A
Authority: RU
Inventors: Йюн ЧЕН; Фридрих Карл БРУДЕР; Фолькер ВЕГЕ; Констадинос ДОУЗИНАС; Ральф ДУЙАРДИН
Original assignee: Байер Акциенгезельшафт; Тайчин Лтд.
Priority date: 1998-11-28
Filing date: 1999-11-16
Publication date: 2003-09-20

Claims

1. A block copolymer with at least three blocks, containing at least one hard block, and at least one soft block, and the solid block contains at least 65 wt.% Parallel elements of the General formula ( I)

in which R ¹ and R ² independently are hydrogen or alkyl with 1-6 carbon atoms,

R ³ is hydrogen or alkyl with 1-6 carbon atoms or annelated alkylene,

p is an integer of 0, 1-5, and the soft block contains

99-50 wt.% Parallel elements based on straight or branched alkenyl with 2-14 carbon atoms and

1-50 wt.% Parallel elements of the General formula (I).

2. The block copolymer according to claim 1, wherein the solid block contains at least 70 wt.% Parallel elements of the formula (I).

3. The block copolymer according to claim 1, wherein the solid block contains at least 75 wt.% Parallel elements of the formula (I).

4. The block copolymer according to claim 1, wherein the solid block contains at least 80 wt.% Parallel elements of the formula (I).

5. The block copolymer according to claim 1, wherein the solid block contains at least 84 wt.% Parallel elements of the formula (I).

6. The block copolymer according to one of the above items, wherein the soft block contains 95-70 wt.% Parallel elements based on straight or branched alkylene with 2-14 carbon atoms and 5-30 wt.% Parallel elements of the general formula (I).

7. The block copolymer according to one of the above items, wherein the content of solid blocks, relative to the whole polymer, is 65-97 wt.%, And the content of soft blocks is 3-35 wt.%

8. The block copolymer according to one of the above items with the following block structure

A ^| - (B ⁱ -A ⁱ ) _n ;

B ^| - (A ⁱ -B ⁱ ) _n ;

(A ⁱ -B ⁱ ) _n ;

wherein A is a solid block, B is a soft block,

n≥1, preferably 1, 2, 3, 4 and

i is an integer between 1 and n (Iin).

10. A method of producing block copolymers according to one of the above items, moreover, when performing live polymerization, vinyl aromatic monomers of the general formula (II) for solid blocks, as well as conjugated dienes of the general formula (III) and vinyl aromatic monomers of the general formula (II) for soft blocks

in which R ¹ , R ² , R ³ and p are as described above and

R ⁴ -R ⁷ independently are hydrogen, alkyl with 1-4 carbon atoms,

is reacted to form a prepolymer, and then the carbon-carbon double bonds of the prepolymer are hydrogenated in the presence of a homogeneous or heterogeneous catalyst.

11. A prepolymer with at least three blocks, which contains at least one hard block and at least one soft block, and the solid block contains at least 65 wt.% Parallel elements of the General formula ( Iv)

in which R ¹ , R ² , R ³ and p are as described above, and the soft block contains 99-50 wt.% parallel elements based on straight or branched, aliphatic (if necessary, olefin) hydrocarbon chains having 2-14 carbon atoms, optionally substituted with alkenyl with 1-4 carbon atoms, and 1-50 wt.% parallel elements of General formula (IV).

12. The use of prepolymers according to claim 11 to obtain block copolymers according to claim 1.

13. The use of block copolymers according to one of claims 1 to 10 for obtaining molded products.

14. Molded products obtained from block copolymers according to one of claims 1 to 10.

15. Optical information storage devices obtained from block copolymers according to one of claims 1 to 10.