Coolio

Differential interference

contrast image of polymer trilayer film with self-

assembled in-plane morphology

Owl

Collision of two holes caused by

dewetting of a thin polymer film on a

substrate

Polymer Juggler Surprised

Dewetting of thin polymer film on a

substrate

Two Stage Dewetting

Two stage dewetting of

polymer trilayer film on a substrate

Slimy

3D Confocal optical microscope

projection of a mature bacterial

biofilm

Rim Breakup

Breakup of rim of growing hole in thin

polymer film

Hole Growth

Growth of hole in freely-standing polystyrene film

On the Edge

Atomic force micrograph of pattern formation near the edge of a

polymer wedge film

Criss-Cross

Reformation of lateral patterns in freely-standing polymer trilayer

film upon cooling of the film

95oC 75oC

Polymer Dots

Self-assembly of “dots” containing 1 picogram (10-12 g) of polymer in a freely-standing

polymer trilayer film

Starry Night

Final morphology of dewetted polymer film

Dewetting

Dewetting of a polymer film on top of another polymer film

Polymer Hell

Pattern formation observed at the

edge of a spincoated

polymer film

Beautiful Bands

In-plane banded structure which

self-assembles in a heated polymer

trilayer film

Volcano

Atomic force micrograph of

dewetting of top layer of polymer

trilayer film

Criss-Cross

In-plane banded structure which

self-assembles in a heated polymer trilayer film and

then reforms with a larger period upon cooling

The Scream

Pattern formation observed near the edge of a spincoated

polymer film

Velvet

Differential interference

contrast image of a freely-standing

polymer film which wrinkles upon heating

Knitting Balls

Atomic force microscopy image

of a self-assembled array

of polymer microspheres

Pattern Formation

Formation and disappearance of

in-plane morphology in freely-standing polymer trilayer

film obtained upon heating

Double the Fun

Two-stage dewetting

process which occurs within

polymer trilayer films

Rainbow

Hole growth in central layer of polymer trilayer

film

Lunar Landing

Atomic force microscopy image

of final morphology of

dewetted polymer trilayer film

Here Comes the Sun

Growth of a hole in the central

layer of a polymer trilayer

film

PSI Group

Contact: Professor John Dutcherwww.physics.uoguelph.ca/psi