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Micromechanical behavior of polymer interface reinforced with copolymers

Conference ·
OSTI ID:400632
; ; ; ;  [1]
  1. State Univ. of New York, Stony Brook, NY (United States)

The fracture toughness of interface reinforced with dps-b-dpmma copolymer between immiscible polymers of PS and PMMA is tested by asymmetric double cantilever beam. The local deformation field at the interfacial crack tip is determined by the technique of SIEM. Normal and tangential crack opening displacements are calculated. A weak singularity is shown to exist near crack tip. Direct observation on the fracture process inside an environmental scanning electron microscope shows the large effect of mode mixity.

OSTI ID:
400632
Report Number(s):
CONF-951155--; ISBN 1-55899-312-6
Country of Publication:
United States
Language:
English