Polymers with new sequence distributions
First Claim
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1. A copolymer comprising an isoolefin and a multiolefin, the copolymer having a copolymer sequence distribution defined by:
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F=m A/(1+mA)2 wherein m is the copolymer sequence distribution parameter;
A is the molar ratio of multiolefin to isoolefin in the copolymer; and
F is the isoolefin-multiolefin-multiolefin triad fraction in the copolymer;
wherein m is from greater than 1.5; and
wherein the copolymer has a Mw of from greater than 1,000,000.
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Abstract
The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel polymers with new sequence distributions. In particular, the invention relates to copolymers of an isoolefin, preferably isobutylene, and a multiolefin, preferably a conjugated diene, more preferably isoprene, with new sequence distributions.
127 Citations
91 Claims
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1. A copolymer comprising an isoolefin and a multiolefin, the copolymer having a copolymer sequence distribution defined by:
F=m A/(1+mA)2wherein m is the copolymer sequence distribution parameter;
A is the molar ratio of multiolefin to isoolefin in the copolymer; and
F is the isoolefin-multiolefin-multiolefin triad fraction in the copolymer;
wherein m is from greater than 1.5; and
wherein the copolymer has a Mw of from greater than 1,000,000. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 83, 84, 85, 86, 87, 88, 89, 90, 91)
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10. A copolymer comprising isobutylene and isoprene, the copolymer having a copolymer sequence distribution defined by:
F=m A/(1+mA)2wherein m is the copolymer sequence distribution parameter;
A is the molar ratio of isoprene to isobutylene in the copolymer; and
F is the isobutylene-isoprene-isoprene triad fraction in the copolymer;
wherein m is from greater than 1.5; and
wherein the copolymer has a Mw of from greater than 1,000,000. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A copolymer comprising an isoolefin and a multiolefin, the copolymer having a copolymer sequence distribution defined by:
F=m A/(1+mA)2wherein m is the copolymer sequence distribution parameter;
A is the molar ratio of multiolefin to isoolefin in the copolymer; and
F is the isoolefin-multiolefin-multiolefin triad fraction in the copolymer;
wherein m is from 1.10 to 1.25; and
wherein the copolymer has a Mw of from greater than 1,000,000. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. A copolymer comprising isobutylene and isoprene, the copolymer having a copolymer sequence distribution defined by:
F=m A/(1+mA)2wherein m is the copolymer sequence distribution parameter;
A is the molar ratio of isoprene to isobutylene in the copolymer; and
F is the isobutylene-isoprene-isoprene triad fraction in the copolymer;
wherein m is from 1.10 to 1.25; and
wherein the copolymer has a Mw of from greater than 1,000,000. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
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35. A copolymer produced by the process comprising contacting an isoolefin, a multiolefin, one or more Lewis acid(s), one or more initiator(s), and a diluent comprising one or more hydrofluorocarbon(s) (HFC'"'"'s);
- the copolymer having a copolymer sequence distribution defined by;
F=m A/(1+mA)2wherein m is the copolymer sequence distribution parameter;
A is the molar ratio of multiolefin to isoolefin in the copolymer; and
F is the isoolefin-multiolefin-multiolefin triad fraction in the copolymer;
wherein m is from greater than 1.5 or m is from 1.10 to 1.25; and
wherein the copolymer has a Mw of from greater than 1,000,000. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82)
- the copolymer having a copolymer sequence distribution defined by;
Specification