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Molecular Dynamics and the Rouse Model - An Introduction to the ...

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Polymers sit in solvents!<br />

<strong>Introduction</strong><br />

Methods<br />

Results<br />

Summary<br />

Appendix<br />

Why am I here?<br />

Polymer physics<br />

Polymer/solvent interaction (varies with temp.) dictates three<br />

situations:<br />

1 polymer ”stretched” ⇒ ”good solvent”<br />

2 ideal r<strong>and</strong>om walk ⇒ ”<strong>the</strong>ta condition”<br />

3 collapses <strong>to</strong> form compact globule<br />

Langevin dynamics<br />

⃗F = − ⃗ ∇U − ⃗ F R (t) − ζ d⃗r<br />

dt = m d2 ⃗r<br />

dt 2<br />

Daniel Bridges, Dr. <strong>An</strong>iket Bhattacharya<br />

<strong>Molecular</strong> <strong>Dynamics</strong> <strong>and</strong> <strong>the</strong> <strong>Rouse</strong> <strong>Model</strong>

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