Branch point from which
f linear chains emanate.
Notes: - Examples are three-, four- and five-functional, branch points.
- Alternatively, the terms trifunctional, tetrafunctional, pentafunctional, etc. may be used.
See also: functionality (of a monomer)
Source:
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 1818 (https://doi.org/10.1351/pac200779101801)