A series of new norbornene monomers containing sterically hindered phenol groups have been synthesized and polymerized via ring-opening metathesis polymerization (ROMP) using the Grubbs 3rd generation catalyst (G3’). ROMPs exhibit first-order kinetics molar masses increase linearly with monomer conversion well-controlled hindered-functionalized polynorbornenes were obtained a to initiator ratio...

Compliance equations based on back-face strain or crack mouth opening displacement, and potential drop techniques are widely used to calculate fatigue growth rate. Standard ASTM E647 for rate testing does not include compliance single edge notched four-point bending (SENB-4P) specimens. Equations developed finite element (FE) analysis have been reported in literature; however, they limited the ...