Phenoxy PKCP-series Structure

Caprolactone Modified Phenoxy

Important notes and data to consider in selecting Phenoxy resins.

1. Special solvent packages with Phenoxy resins available on request (drums and/or bulk)
2. Reduced viscosity versions of InChemRez LER-HB with epoxy diluents available on request
3. Caprolactone-modified Phenoxy resins have pendant branches with terminal primary hydroxyls resulting from random grafting of e-caprolactone monomer onto the Phenoxy backbone. The esterification also results in lower glass transition temperatures and lower product viscosities. (see chart)
4. The PKCP-series of caprolactone modified Phenoxy resin are structurally represented below and modeled (see chart).  The random branches (typically x is about 2) produce resins with lower glass transitions than unmodified Phenoxy, and enhance the compatibility with alkyl esters and polyesters.
5. The structural models below illustrate the comb-like structure of the caprolactone-modified Phenoxy resin wherein random secondary hydroxyls are converted to primary hydroxyls pendant on relatively short side chains compared to the longer Phenoxy backbone