Premium
Self‐toughening liquid crystalline vinyl ester adhesives
Author(s) -
Amendola E.,
Giamberini M.,
Carfagna C.,
Ambrogi V.
Publication year - 2002
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/1521-3900(200203)180:1<153::aid-masy153>3.0.co;2-1
Subject(s) - thermosetting polymer , materials science , vinyl ester , adhesive , epoxy , composite material , toughening , composite number , isotropy , polymer , toughness , monomer , layer (electronics) , physics , quantum mechanics
Vinyl ester resins are widely used as thermosetting matrices for production of advanced composite and structural adhesives. They are obtained by end‐capping unsaturated vinyl groups on a large variety of suitable oligomeric precursor, resulting in thermosetting resin with a good processability and outstanding end‐use properties. In this paper we describe the shynthesis of a new methacrylated derivative of p‐(2,3‐epoxypropoxy)‐α‐methylstilbene exhibiting liquid crystalline phases, referred to as MD3A2. For the sake of comparison, a model compound has been synthesized with very similar chemical backbone. The model compound, referred to as MEP3A2, features isotropic phase and is derived form the commercially available Epon 825 ® epoxy resin (Shell Oil Company). Fracture resistance of samples has been tested according to ASTM D1002‐72 (Strength Properties of Adhesives in Shear by Tension Loading) on aluminum supports and related to the presence of isotropic or liquid crystalline phases.