Acidic polysaccharide mimics via ring-opening metathesis polymerization.
An efficient and general synthetic strategy for the preparation of high-molecular-weight hydrophilic polymers bearing both carboxylic acid and hydroxyl pendant groups is described. Specifically, poly(5,6-dihydroxyoxanorbornane carboxylic acid) with molecular weight ranging from ∼100 000 to 5 000 000 g/mol was prepared by ring-opening metathesis polymerization of methyl 5-oxanorbornene-2-carboxylate in the presence of Grubbs catalyst II and subsequently modified to tune the hydrophobic/hydrophilic properties by the introduction of either hydroxyl or carboxylic acid functionalities. These polymers mimic the natural acidic polysaccharide alginate and form hydrogels with polylysine. These polymers belong to a class of carbohydrate-like polymers, which are of interest for investigating the relationships between chemical structure and rheological properties as well as for providing new synthetic polysaccharide substitutes for applications in the biotechnology and pharmaceutical industries.
Wathier
Michel
M
Department of Biomedical Engineering, Metcalf Center for Science and Engineering, Boston University, Boston, Massachusetts 02215, United States.
Stoddart
Stephanie S
SS
Sheehy
Matthew J
MJ
Grinstaff
Mark W
MW
D000143:Acids / Q000737:chemistry; D000464:Alginates / Q000737:chemistry; D040761:Biomimetic Materials / Q000138:chemical synthesis* / Q000737:chemistry; D001897:Boronic Acids / Q000737:chemistry; D020723:Glucuronic Acid / Q000737:chemistry; D006603:Hexuronic Acids / Q000737:chemistry; D000071228:Polyelectrolytes; D011107:Polylysine / Q000737:chemistry; D058105:Polymerization; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry; D011134:Polysaccharides / Q000138:chemical synthesis* / Q000737:chemistry
D000143:Acids; D000464:Alginates; D001897:Boronic Acids; D020723:Glucuronic Acid; D006603:Hexuronic Acids; D000071228:Polyelectrolytes; D011107:Polylysine; D011108:Polymers; D011134:Polysaccharides; C010686:benzeneboronic acid