gel point

Also contains definition of: gelation point
Point of incipient @NT07562@ formation in a process forming a chemical or physical @P04742@.
  1. In both @NT07562@-forming @P04740@ and the @CT07136@ of polymer chains, the @G02600@ point is expressed as an extent of chemical reaction (c.f., @GT07536@).
  2. At the @G02600@ point a solid (@NT07562@) material spanning the entire system is formed.
  3. The @G02600@ point is often detected using rheological methods. Different methods can give different @G02600@ points because @V06627@ is tending to infinity at the @G02600@ point and a unique value cannot be measured directly.
See also:
gel fraction
PAC, 2007, 79, 1801. (Definitions of terms relating to the structure and processing of sols, gels, networks, and inorganic-organic hybrid materials (IUPAC Recommendations 2007)) on page 1809 [Terms] [Paper]