CAPA^® polymers are all produced by a ring opening addition polymerisation reaction rather than the condensation polymerisation reaction normally used for polyester production.

This simple but highly versatile chemistry enables the production of a wide range of polymers and copolymers to meet the high performance demands of the diverse range of speciality products made form CAPA^® polymers.

The Polymerisation of Caprolactone Monomer

The performance of CAPA^® polymers can be designed by modification of key parameters such as

• Molecular weight 300 to >100,000
• Functionality 1 to >100
• Polydispersity 1.2 minimum
• Copolymers Block and random
• Forms
• • Polyols - liquids, pastes and waxes
  • Thermoplastics - hard crystalline polymers, powders, films and fibres
• Reactivity
• • Polyols all have primary -OH
  • Mixed -OH and -COOH functionality available
  • Carboxylic terminated polymers available

For information on existing commercial products click here

To design your own product use the 'Design Your CAPA' tool