Photoinitiated vinyl addition polymerized (photo-VAP) norbornene resins for 3D printing
Kyle
Cushman, 
†a
Guodong
Deng,
†a
Kavyasree
Manal,
†b
Mark R.
Yarolimek,
a
Caleb L.
Cipkar,
a
Steffen
Jockusch,
b
Larry F.
Rhodes
*a
and
Jayaraman
Sivaguru
*b
†a
Guodong
Deng,
†a
Kavyasree
Manal,
†b
Mark R.
Yarolimek,
a
Caleb L.
Cipkar,
a
Steffen
Jockusch,
b
Larry F.
Rhodes
*a
and
Jayaraman
Sivaguru
*b
Abstract
Light-initiated norbornene vinyl addition polymerization (norbornene photo-VAP) can be achieved in a matter of seconds using a palladium precatalyst, photoacid generator (PAG) and photosensitizer (PS). This system provides high conversion and fast cure time making it suitable for light-initiated 3D printing. Photophysical studies of the system revealed insights in understanding this highly efficient formulation for high Tg norbornene photo-VAP resins.
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