# US 2013/0158206 A1 · In situ formation of hydroxy chain end functional polyolefins

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- Number: US 2013/0158206 A1
- Document ID: US20130158206A1
- Status: Published application
- Kind: A1
- Application number: 13/767,630
- Filed: 2013-02-14
- Published: 2013-06-20
- Earliest claimed: 2009-07-31
- Assignees: The University of Southern Mississippi
- Inventors: Robson F. Storey; David L. Morgan
- Web page: https://patentgrep.com/patent/US20130158206A1

## CPC

- C08F 10/10: Isobutene
- C07D 207/325: with substituted hydrocarbon radicals directly attached to the ring nitrogen atom
- C07D 207/335: Radicals substituted by nitrogen atoms not forming part of a nitro radical
- C08F 8/30: Introducing nitrogen atoms or nitrogen-containing groups
- C08F 110/10: Isobutene
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C07D: HETEROCYCLIC COMPOUNDS (macromolecular compounds C08)

## Abstract

Provided herein are methods for preparing a telechelic polymer of formula I wherein: R1 is a polyolefin group; R2 and R3 are, independently in each —(CR2R3)— unit, hydrogen or alkyl from 1 to 6 carbons; m is an integer from 2 to 20; RX is a cationic initiator residue; and p is an integer from 1 to 4.

## Claims

### Claim 1

A compound of formula I:
wherein:
R1 is a divalent polyolefin group;
R2 and R3 are, independently in each —(CR2R3)— unit, hydrogen or alkyl from 1 to 6 carbons;
m is an integer from 2 to 20;
RX is a cationic initiator residue; and
p is an integer from 1 to 4.

### Claim 2 (depends on 1)

The compound of claim 1, wherein R1 is in the 3-position of the pyrrole ring.

### Claim 3 (depends on 1)

The compound of claim 1, wherein R1 is in the 2-position of the pyrrole ring.

### Claim 4 (depends on 1)

The compound of claim 1, wherein R1 is a divalent polyisobutylene group.

### Claim 5 (depends on 1)

The compound of claim 1, wherein R2 and R3 are hydrogen.

### Claim 6 (depends on 1)

The compound of claim 1, wherein m is 2 or 3.

### Claim 7 (depends on 1)

The compound of claim 1, wherein p is 1 and RX is

### Claim 8 (depends on 1)

The compound of claim 1, wherein the RX is:
wherein RB is alkyl; t is an integer from 1-3; and t and p are the same integer.

### Claim 9 (depends on 1)

The compound of claim 1, wherein the compound of formula I is the compound of formula XIII:
wherein RB is alkyl.

### Claim 10 (depends on 1)

The compound of claim 1, wherein p is 1 or 2.

### Claim 11

A compound of formula III:
wherein:
R1 is a divalent polyolefin group;
R2 and R3 are, independently in each —(CR2R3)— unit, hydrogen or alkyl from 1 to 6 carbons;
m is an integer from 2 to 20;
RX is a cationic initiator residue;
p is an integer from 1 to 4; and
R4 is alkyl, alkenyl, alkynyl, aryl, alkaryl, aralkyl, —C(O)R5; —SO3R6, and —SO2R7, or) —Si(R8)(R9)(R10); wherein R5, R6, R7, R8, R9, and R10 are each independently, alkyl or aryl.

### Claim 12 (depends on 11)

The compound of claim 11, wherein R1 is in the 3-position of the pyrrole ring.

### Claim 13 (depends on 11)

The compound of claim 11, wherein R1 is in the 2-position of the pyrrole ring.

### Claim 14 (depends on 11)

The compound of claim 11, wherein R1 is a divalent polyisobutylene group.

### Claim 15 (depends on 11)

The compound of claim 11, wherein R2 and R3 are hydrogen.

### Claim 16 (depends on 11)

The compound of claim 11, wherein m is 2 or 3.

### Claim 17 (depends on 11)

The compound of claim 11, wherein p is 1 and RX is

### Claim 18 (depends on 11)

The method of claim 11, wherein RX is
wherein RB is alkyl; t is an integer from 1-3; and t and p are the same integer.

### Claim 19 (depends on 11)

The compound of claim 11, wherein R4 is
wherein G1 is H or alkyl of 1-3 carbons; and G2 and G3 are each, independently, alkyl of 1-3 carbons.

### Claim 20 (depends on 11)

The compound of claim 11, wherein R4 is tert-butyl.

### Claim 21 (depends on 11)

The method of claim 11, where p is 1 or 2.