21. Curable polymers used by plastination include silicone, epoxy and polyester-copolymer . 22. Both POM homopolymer and copolymer are stabilized to mitigate these types of degradation. 23. The encasing of the oligomer by the multiblock copolymer prevented this from happening. 24. Other materials in some include polyethylene terephthalate-polyethylene isophthalate copolymer and acrylic. 25. They also studied the interface properties of copolymers / Al or Si structures. 26. Chemically it is a copolymer of ethylene and chlorotrifluoroethylene. 27. Polymerization can be used to prepare the homopolymer ( polyallylamine ) or copolymers . 28. Styrene maleic anhydride copolymer is formed, retaining the aromaticity of the styrene. 29. The general structure of these copolymers in solution is not yet well established. 30. A graft-and-block copolymer is two different polymers grafted together.