Properties of expanding SOC/epoxy copolymers for dental use in dental composites.
The objective of this work was to develop copolymers of alicyclic spiroorthocarbonates (SOCs) and epoxies that would yield hard non-shrinking matrix resins suitable for formulating dental composites. Several reactant ratio combinations of a four-component SOC/epoxy comonomer system were developed that demonstrated a copolymer expansion of between 0.1 and 0.8% on polymerization. The physical properties of tensile strength (29-48 MPa), water solubility of less than 5 microgram/mm(3), and water sorption of less than 50 microgram/mm(3) for the copolymer containing 5% SOC suggest that these materials have potential as matrix resins for dental composites.
Eick
J D
JD
University of Missouri-Kansas City, School of Dentistry, Department of Oral Biology, Kansas City, MO, USA.
Byerley
T J
TJ
Chappell
R P
RP
Chen
G R
GR
Bowles
C Q
CQ
Chappelow
C C
CC
D002254:Carbonates / Q000737:chemistry; D003188:Composite Resins / Q000138:chemical synthesis / Q000737:chemistry*; D004548:Elasticity; D004853:Epoxy Resins / Q000737:chemistry*; D008422:Materials Testing; D011108:Polymers / Q000737:chemistry; D013141:Spiro Compounds / Q000737:chemistry*; D013718:Tensile Strength; D014867:Water
D002254:Carbonates; D003188:Composite Resins; D004853:Epoxy Resins; D011108:Polymers; D013141:Spiro Compounds; D014867:Water