Substantiallymonodispersed mixtures of polymers having polyethylene glycol moieties
First Claim
1. A substantially monodispersed mixture of polymers, wherein at least 95 percent of the polymers in the mixture each comprise a polyethylene glycol moiety having from 7 to 50 polyethylene glycol subunits, and wherein the at least 95 percent of the polymers in the mixture each have the same number of polyethylene glycol subunits.
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Accused Products
Abstract
Methods of synthesizing a substantially monodispersed mixture of polymers comprising polyethylene glycol moieties include:
reacting a substantially monodispersed mixture of compounds having the structure of Formula I:
wherein R1 is H or a lipophilic moiety; n is from 1 to 25; and X+ is a positive ion, with a substantially monodispersed mixture of compounds having the structure of Formula II:
wherein R2 is H or a lipophilic moiety; and m is from 1 to 25, under conditions sufficient to provide a substantially monodispersed mixture of polymers comprising polyethylene glycol moieties and having the structure of Formula III:
Substantially monodispersed mixtures of polymers comprising polyethylene glycol moieties are also disclosed.
49 Citations
37 Claims
- 1. A substantially monodispersed mixture of polymers, wherein at least 95 percent of the polymers in the mixture each comprise a polyethylene glycol moiety having from 7 to 50 polyethylene glycol subunits, and wherein the at least 95 percent of the polymers in the mixture each have the same number of polyethylene glycol subunits.
- 24. A substantially monodispersed mixture of polymers, wherein at least 95 percent of the polymers in the mixture each comprise a fatty acid moiety covalently coupled to a polyethylene glycol moiety having from 7 to 50 polyethylene glycol subunits, and wherein the at least 95 percent of the polymers in the mixture each have the same number of polyethylene glycol subunits.
- 33. A substantially monodispersed mixture of polymers, wherein at least 95 percent of the polymers in the mixture each consist of a polyethylene glycol moiety having from 7 to 50 polyethylene glycol subunits and a terminal methyl group at one end of the polyethylene glycol moiety, and wherein the at least 95 percent of the polymers in the mixture each have the same number of polyethylene glycol subunits.
Specification