in which phase domains have shapes with one dimension much larger than the other
Fibrillar phase domains have the appearance of fibres.
PAC, 2004, 76, 1985
(Definition of terms related to polymer blends, composites, and multiphase polymeric
materials (IUPAC Recommendations 2004))
on page 2003
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook