PolymersProf. David Roylance

Department of Materials Science and Engineering

MIT/DMSE

1.

Committee on Materials Science and Engineering, National Research Council,

M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials

, National Academy Press, Washington, D.C., 1989.

Advice to Benjamin Braddock, 1967:

“I’ve got one word for you, my boy: …”

MIT/DMSE

Plastics, my boy ...

MIT/DMSE

1.

Committee on Materials Science and Engineering, National Research Council,

M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials

, National Academy Press, Washington, D.C., 1989.

MIT/DMSE

Some polymer history –• ca 1492 Columbus (Priestly ca 1800)

•ca 1839 Goodyear/Hancock

•ca 1930 Staudinger/Carouthers

•ca 1953 Watson/Crick

•ca 1955 Ziegler/Natta

•ca 1970 Kwolek

MIT/DMSE

The Polymeric Solid State

Blow-molded HDPE milk bottle (recyclable)

Semicrystalline microstructure

Covalently-bonded long-chain hydrocarbon

MIT/DMSE

Stiffness vs. Temperature

MIT/DMSE

1.

Committee on Materials Science and Engineering, National Research Council,

M aterials Science and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials

, National Academy Press, Washington, D.C., 1989.

1.

Committee on Materials Science and Engineering, National Research Council,

M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials

, National Academy Press, Washington, D.C., 1989.

Molecular Orientation and Strength

MIT/DMSE

Polyamides

Carouthers: nylon 66

Kwolek: aramid

MIT/DMSE

1.

Committee on Materials Science and Engineering, National Research Council,

M aterials Science and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials

, National Academy Press, Washington, D.C., 1989.

1.

Committee on Materials Science and Engineering, National Research Council,

M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials

, National Academy Press, Washington, D.C., 1989.

Kevlar Fibers – a polyaramid

MIT/DMSE

1.

Committee on Materials Science and Engineering, National Research Council,

M aterials Science and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials

, National Academy Press, Washington, D.C., 1989.

1.

Committee on Materials Science and Engineering, National Research Council,

M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials

, National Academy Press, Washington, D.C., 1989.

Modern Lightweight Personnel Armor

MIT/DMSE

1.

Committee on Materials Science and Engineering, National Research Council,

M aterials Science and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials

, National Academy Press, Washington, D.C., 1989.

1.

Committee on Materials Science and Engineering, National Research Council,

M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials

, National Academy Press, Washington, D.C., 1989.

Panel and Bullet After Impact

MIT/DMSE

1.

Committee on Materials Science and Engineering, National Research Council,

M aterials Science and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials

, National Academy Press, Washington, D.C., 1989.

1.

Committee on Materials Science and Engineering, National Research Council,

M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials

, National Academy Press, Washington, D.C., 1989.

Strain and Displacement in Fabric Layer

MIT/DMSE

1.

Committee on Materials Science and Engineering, National Research Council,

M aterials Science and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials

, National Academy Press, Washington, D.C., 1989.

1.

Committee on Materials Science and Engineering, National Research Council,

M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials

, National Academy Press, Washington, D.C., 1989.

Vs-Vr Plot – Kevlar 29, Single Layer

MIT/DMSE

1.

Committee on Materials Science and Engineering, National Research Council,

M aterials Science and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials

, National Academy Press, Washington, D.C., 1989.

1.

Committee on Materials Science and Engineering, National Research Council,

M aterials Sci ence and Engineering forthe 1990s: Maintaining Competitiveness in the Age o f Materials

, National Academy Press, Washington, D.C., 1989.

Influence of Strength and Stiffness on V50

MIT/DMSE