Synthesis of high molecular weight PEO using non-metal initiators
First Claim
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1. A method of synthesizing metal-free, high molecular weight polymers with low polydispersity, comprising the steps of:
- a) providing a mixture of an alcohol and a solvent;
b) adding t-BuP4 to the mixture to make a metal-free initiator;
c) adding monomers to the initiator;
d) allowing the monomers and the initiator to react to form a metal-free, high molecular weight polymers with a polydispersity less than 1.5;
wherein the alcohol is selected from the group consisting of bisphenol A, 2,5-dimethyl-2,5-hexanediol, phenol, and t-butyl alcohol.
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Abstract
A new synthetic method to prepare high molecular weight poly(ethylene oxide) with a very narrow molecular weight distribution (PDI<1.5) is described. The method involves a metal free initiator system, thus avoiding dangerous, flammable organometallic compounds.
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Citations
6 Claims
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1. A method of synthesizing metal-free, high molecular weight polymers with low polydispersity, comprising the steps of:
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a) providing a mixture of an alcohol and a solvent; b) adding t-BuP4 to the mixture to make a metal-free initiator; c) adding monomers to the initiator; d) allowing the monomers and the initiator to react to form a metal-free, high molecular weight polymers with a polydispersity less than 1.5; wherein the alcohol is selected from the group consisting of bisphenol A, 2,5-dimethyl-2,5-hexanediol, phenol, and t-butyl alcohol. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification