e1
QUESTIONS
1. Name at least four mechanisms that may hold a
hydrogel together without covalent bonds.
side groups on the network chains degrade; (c) their
chains lose hydrophobically-bound water; or (d) their
ANSWERS
1. (a) chain entanglements; (b) H-bonds; (c) affinity
recognition; (d) ionic interactions; (e) hetero-dimer
2. (c)
3. In the GI tract, going from the gastric to the enteric
CHAPTER I.2.5
Hydrogels