Divinylbenzene/maleic anhydride polymeric material

Patent metadata

Field	Value
Publication number	US-2016311996-A1
Application number	US-201415102810-A
Country	US
Kind code	A1
Filing date	Dec 16, 2014
Priority date	Dec 19, 2013
Publication date	Oct 27, 2016
Grant date	—

Abstract

Divinylbenzene/maleic anhydride polymeric materials are provided that are porous and that have a BET specific surface area equal to at least 300 m 2 /gram. The polymeric materials typically have micropores, mesopores, or a combination thereof. The divinylbenzene/maleic anhydride polymeric materials are precursor polymers that can be hydrolyzed to polymeric materials having carboxylic acid groups.

First claim

1 . A polymeric material comprising a reaction product of a polymerized product of a polymerizable composition comprising
i) a monomer mixture comprising
1) 8 to 40 weight percent maleic anhydride based on a total weight of monomers in the monomer mixture; and
2) 48 to 75 weight percent divinylbenzene based on the total weight of monomers in the monomer mixture; and
3) 0 to 20 weight percent of a styrene-type monomer based on the total weight of monomers in the monomer mixture, wherein the styrene-type monomer is styrene, an alkyl substituted styrene, or a combination thereof; and
ii) an organic solvent comprising a ketone, an ester, acetonitrile, or a mixture thereof,
wherein the polymerizable composition is a single phase prior to polymerization; and
wherein the polymeric material has a BET specific surface area equal to at least 300 m 2 /gram.

2 . The polymeric material of claim 1 , wherein the BET specific surface area is equal to at least 500 m 2 /gram.

3 . The polymeric material of claim 1 , wherein the monomer mixture comprises 10 to 40 weight percent maleic anhydride, 50 to 75 weight percent divinylbenzene, and 1 to 20 weight percent styrene-type monomer.

4 . The polymeric material of claim 1 , wherein the monomer mixture comprises 15 to 40 weight percent maleic anhydride, 50 to 65 weight percent divinylbenzene, and 1 to 20 weight percent styrene-type monomer.

5 . The polymeric material of claim 1 , wherein the monomer mixture comprises 20 to 30 weight percent maleic anhydride, 55 to 75 weight percent divinylbenzene, and 1 to 20 weight percent styrene-type monomer.

6 . The polymeric material of claim 1 , wherein at least 50 percent of the BET specific surface area is attributable to micropores, mesopores, or a combination thereof.

7 . The polymeric material of claim 1 , wherein the organic solvent comprises a ketone comprising methyl ethyl ketone, methyl isobutyl ketone, or a mixture thereof.

8 . The polymeric material of claim 1 , wherein the organic solvent comprises an ester comprising an acetate ester comprising ethyl acetate, propyl acetate, butyl acetate, amyl acetate, tert-butyl acetate, or a combination thereof.

9 . The polymeric material of claim 1 , wherein the organic solvent comprises acetonitrile.

10 . The polymeric material of claim 1 , wherein the polymerizable composition has percent solids equal to at least 5 weight percent.

11 . The polymeric material of claim 1 , wherein at least 99 weight percent of the monomers in the monomer mixture are divinylbenzene, maleic anhydride, or the styrene-type monomer.

12 . A method of making a polymeric material, the method comprising:
a) preparing a polymerizable composition comprising
i) a monomer mixture comprising
1) 8 to 40 weight percent maleic anhydride based on a total weight of monomers in the monomer mixture; and
2) 48 to 75 weight percent divinylbenzene based on the total weight of monomers in the monomer mixture; and
3) 0 to 20 weight percent of a styrene-type monomer based on the total weight of monomers in the monomer mixture, wherein the styrene-type monomer is styrene, an alkyl substituted styrene, or a combination thereof; and

ii) an organic solvent comprising a ketone, an ester, acetonitrile, or a mixture thereof, wherein the polymerizable composition is a single phase prior to polymerization; and
b) forming a polymeric material by reacting the polymerizable composition,
wherein the polymeric material has a BET specific surface area equal to at least 300 m 2 /gram.

Assignees

• 3M Innovative Properties Co

Inventors

• Wendland Michael S
• Kobe Michael W

Classifications

• C08F212/36 Primary

  Divinylbenzene · CPC title

• C08J9/286 Primary

  the liquid phase being a solvent for the monomers but not for the resulting macromolecular composition, i.e. macroporous or macroreticular polymers · CPC title

• C08F222/06

  Maleic anhydride · CPC title

• C08F212/08

  Styrene · CPC title

• C08F2800/20

  as weight or mass percentages · CPC title