## hard-segment phase domain

https://doi.org/10.1351/goldbook.HT07293
@PT07286@ of microscopic or smaller size, usually in a @B00682@, graft, or @ST07295@, comprising essentially those segments of the polymer that are rigid and capable of forming strong @I03098@ interactions.
Note:
Hard-segment phase domains are typically of $$2-15\ \text{nm}$$ linear size.
Source:
PAC, 2004, 76, 1985. (Definition of terms related to polymer blends, composites, and multiphase polymeric materials (IUPAC Recommendations 2004)) on page 2002 [Terms] [Paper]