Contact lens and dental manufacturing

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Innovative Materials for Glass Ionomer Cements (GICs): Dental Applications

Innovation in dental restorative materials is driven by the need for biocompatible and natural-appearing restoration alternatives. Conventional dental materials like amalgam and composite resins have inherent disadvantages.

The Progress in Development of Dental Restorative Materials

With dentists placing nearly 100 million dental fillings into patients′ teeth annually in the U.S. alone, polymeric composite restoratives account for a very large share of the biomaterials market.

Polymer Analysis in Materials Science

Scientists at Sigma-Aldrich® routinely determine number-average molecular weight (Mn) by 1H NMR end-group analysis for polymers having Mn values under 3,000.

High-Purity Monomers & Polymers for Ophthalmic Applications

We offer a continuously expanding selection of high-purity monomers and polymers for ophthalmic applications, along with a full range of initiators, crosslinkers, dyes, and solvents.

RAFT: Choosing the Right Agent to Achieve Controlled Polymerization

Find reversible addition–fragmentation chain transfer(RAFT) polymerization process, classes of RAFT agents & applications.

Continuous Flow Monomer Synthesis

Monomers for ophthalmic use aim for purity, reliability, and comfort, driving innovation for affordable contact lenses.

Micro Review of RAFT Polymerization

Micro review of reversible addition/fragmentation chain transfer (RAFT) polymerization.

ATRP Ligands & Initiators: Clean Functional Polymers

ATRP is a successful method for precise polymer synthesis with controlled molecular weights and high chain end functionalities.