Provided herein are vinyl ether end-functionalized polyolefins and methods for producing the same.
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1. A method for preparing a telechelic polymer comprising contacting a compound of formula I: with a base, wherein: R1 and R2 are each, independently, H, alkyl, or alkoxy;Ra is a polyisobutylene group;Rx is an initiator residue;r is an integer from 1 to 4; andX is —Cl, —Br, —I, or —OC(O)R, wherein
1. A method for preparing a telechelic polymer comprising contacting a compound of formula I: with a base, wherein: R1 and R2 are each, independently, H, alkyl, or alkoxy;Ra is a polyisobutylene group;Rx is an initiator residue;r is an integer from 1 to 4; andX is —Cl, —Br, —I, or —OC(O)R, wherein R alkyl, alkenyl, alkynyl, alkaryl, aryl, or heteroaryl. 2. The method of claim 1, wherein R1 and R2 are H. 3. The method of claim 1, wherein X is —Cl. 4. The method of claim 1, wherein the base is a metal hydroxide or metal alkoxide. 5. The method of claim 4, wherein the base is MOR, wherein M is sodium or potassium, and R is H or alkyl. 6. The method of claim 5, wherein the O is bonded to Ron a secondary or tertiary carbon. 7. The method of claim 5, wherein the base is potassium tert-butoxide. 8. The method of claim 1, wherein the compound of formula I contacts with the base to form a compound of formula II: wherein: R1 and R2 are each, independently, H, alkyl, or alkoxy;Ra is a polyisobutylene group;Rx is an initiator residue; andr is an integer from 1 to 4. 9. The method of claim 1, wherein r is 1. 10. The method of claim 1, wherein r is 1 and Rx is 11. The method of claim 1, wherein r is 2 and Rx is wherein Rc is H or alkyl. 12. The method of claim 1, wherein the method is performed in the presence of a diluent. 13. The method of claim 12, wherein the diluent is a mixture of a non-polar solvent and an aprotic dipolar solvent. 14. The method of claim 13, wherein the non-polar solvent is a heptane and the aprotic dipolar solvent is N,N-dimethylformamide. 15. The method of claim 13, wherein the method is performed at a refluxing temperature. 16. The method of claim 1, wherein the compound of formula I is formed by (a) generating a quasiliving carbocationic polyolefin; and(b) reacting the quasiliving carbocationic polyolefin from step (a) with one or more compounds of formula III in the presence of a Lewis acid or mixture of Lewis acids under quasiliving carbocationic polymerization conditions: wherein: R1 and R2 are each, independently, H, alkyl, or alkoxy; andX is —Cl, —Br, —I, or —OC(O)R, wherein R is alkyl, alkenyl, alkynyl, alkaryl, aryl, or heteroaryl. 17. The method of claim 16, wherein the quasiliving carbocationic polyolefin is prepared by adding a Lewis acid and a monomer to an initiator in the presence of an electron donor, common ion salt, or common ion salt precursor. 18. The method of claim 17, wherein the initiator is 2-chloro-2,4,4-trimethylpentane. 19. The method of claim 17, wherein the monomer is isobutylene. 20. The method of claim 17, wherein the electron donor is 2,6-lutidine. 21. The method of claim 17, wherein the Lewis acid is a titanium tetrahalide. 22. The method of claim 16, wherein steps (a) and (b) are performed in the presence of a diluent. 23. The method of claim 22, wherein the diluent is a mixture of hexanes and methyl chloride. 24. A product formed by the method of claim 1. 25. The product of claim 24, wherein the polydispersity index of the product is less than 1.3.
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