Core-shell tectodendrimers
First Claim
1. A composition of matter comprising:
- a reaction product of a core dendritic polymer molecular having a plurality of terminal functional groups of a first type which are not reactive with each other, and a plurality of shell dendritic polymer molecules having a plurality of terminal functional groups of a second type which are not reactive with each other, but which are reactive with the terminal functional groups of the first type, each of the shell dendritic polymer molecules chemically bonded to the core dendritic polymer molecule by a reaction of at least one of the terminal functional groups of the second type with at least one of the terminal functional groups of the first type, the reaction product having at least 40% of the theoretical maximum number (Mm) of dendritic polymer molecules of the second type that can be bonded to the core dendritic polymer molecule, wherein where r1 is the radius of the core dendritic polymer molecule and r2 is the radius of the shell dendritic polymer molecule.
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Accused Products
Abstract
Core-shell tecto(dendrimers) useful in biomedicine, pharmaceuticals, personal care products, and in other ways analogous to the known uses for dendrimers, hypercomb branched polymers, and other dendritic polymers are the reaction product of a core dendritic polymer molecule having a plurality of terminal functional groups of a first type which are not reactive with each other, and a plurality of shell dendritic polymer molecules having a plurality of terminal functional groups of a second type which are not reactive with each other, but which are reactive with the terminal functional groups of the first type. Each of the shell dendritic polymer molecules is chemically bonded to the core dendritic polymer molecule by a reaction of at least one of the terminal functional groups of the second type with at least one of the terminal functional groups of the first type.
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Citations
10 Claims
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1. A composition of matter comprising:
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a reaction product of a core dendritic polymer molecular having a plurality of terminal functional groups of a first type which are not reactive with each other, and a plurality of shell dendritic polymer molecules having a plurality of terminal functional groups of a second type which are not reactive with each other, but which are reactive with the terminal functional groups of the first type, each of the shell dendritic polymer molecules chemically bonded to the core dendritic polymer molecule by a reaction of at least one of the terminal functional groups of the second type with at least one of the terminal functional groups of the first type, the reaction product having at least 40% of the theoretical maximum number (Mm) of dendritic polymer molecules of the second type that can be bonded to the core dendritic polymer molecule, wherein where r1 is the radius of the core dendritic polymer molecule and r2 is the radius of the shell dendritic polymer molecule. - View Dependent Claims (4, 5, 6, 7, 8)
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2. A process for preparing a composition of matter which is the reaction product of a core dendritic polymer molecule and a plurality of shell dendritic polymer molecules surrounding and chemically bonded to the core dendritic polymer molecule, comprising:
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providing the core dendritic polymer molecules, the dendritic core polymer molecules each having a plurality of terminal functional groups of a first type which are not reactive with each other;
providing the shell dendritic polymer molecules, the shell dendritic polymer molecules having a plurality of terminal functional groups of a second type which are not reactive with each other, but which are reactive with the terminal functional groups of the first type;
combining the core dendritic polymer molecules with the shell dendritic polymer molecules in a solution, the amounts of the core dendritic polymer molecules and the shell dendritic polymer molecules being selected so that the ratio of shell dendritic polymer molecules to core dendritic polymer molecules is at least 4;
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reacting the terminal groups of the first type with the terminal groups of the second type to form a core-shell polymer which is the reaction product of a single core dendritic polymer molecule and a plurality of shell dendritic polymer molecules that are chemically bonded to, and surround, the core dendritic polymer molecules, the number of shell dendritic polymer molecules bonded to each core dendritic polymer molecule being at least 40% of the theoretical maximum number (Mm) that can be bonded to the core dendritic polymer molecule, wherein where r1 is the radius of the core dendritic polymer molecule and r2 is the radius of the shell dendritic polymer molecule. - View Dependent Claims (9, 10)
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3. The composition of matter comprising:
the reaction product of a single dendritic core polymer molecule, a plurality of shell dendritic polymer molecules chemically bonded to the surface of the core dendritic polymer molecule to form a first shell surrounding the core molecule, and a plurality of dendritic polymer molecules bonded to the shell dendritic polymer molecules to form a second shell surrounding the first shell.
Specification