11. One example is inserting an oligomer into a multiblock copolymer . 12. When different monomers are polymerized, a copolymer is formed. 13. This can become useful when talking about liquid crystals and block copolymers . 14. EGDMA can be used in free radical copolymer crosslinking reactions. 15. One successful scaffold is a copolymer of lactic acid and glycolic acid. 16. Copolymers contain two different alternating chemical entities in the final polymer molecule.17. Differences have been reported when homo-polymers are compared to copolymers . 18. Horne submitted the ethylene / isoprene copolymer for infrared examination. 19. Lastly, micelles result from electrostatic interaction between nucleic acids and copolymers . 20. Styrene is the precursor to polystyrene and several copolymers .