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Polymer Mixing... Updated!

Why a new mixing method and recipe?

  1. It's the best of course! We wouldn't put it on the website unless it was.
  2. * Allows for greater Flexibility and Reliability:
  3. * Benefits of using Dioxane:
  4. * What characteristics create the best devices?


  1. 1. Choose your Ingredients (Solvent, Polymer Host, Chromophore)

  2. 2. Go to polymer_calc.phtml to create recipe.

  3. 3. Measure your polymer - by weight - into a small glass vial.

  4. 4. Measure solvent - by volume

  5. 5. Mix solvent and polymer on stirring hot plate

  6. 6. Measure DR1 - by weight

  7. 7. Mix on stirring hotplate

  8. 8. Filter Polymer into new vial

  9. 9. Label and Store

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Compress All

Table of Solvent Characteristics and Warnings:

Solvent Formula wt. Density (g/cm3) @ 20 C Viscosity @ Temp(c) Refractive index at 589 nm General Notes Safety Warnings
1,4-Dioxane 88.11 1.0329 1.26 @ 20 C 1.422 Used Currently. Provides very uniform polymer films. About the same volatility as Chloro/MEK, but dissolves PMMA/DR1 better. Extremely toxic. Will form explosive peroxides when exposed to O2 and sunlight. Cover vials with Parafilm after each use. Causes cancer in animals. Toxic to liver and kidneys. Easily absorbed through skin, causing poisoning without any warning signs. Only work with small amounts <10mL.
Chlorobenzene/MEK 112.56 / 72.11

Combined: 102.45
1.107 / .805

Combined: 1.0315
? / .423 @ 15 C 1.524 / 1.397 To mix use 3:1 ratio of Chlorobenzene to MEK. Used back in the day (Ben Ipson) does not hold DR1 very well (falls out over time) Irritant. Do not inhale. Not very toxic - May cause nerve damage
Cyclohexanone 98.15 .947 2.543 @ 15 C 1.45 Used for "thick" polymer. Does not wet well when spun thin - leaves large bubbles and sometimes particles in the film. Filter periodically. Not very toxic. Irritant. Easily absorbed through skin. Will eat through most plastics
1,1,2-Trichloroethane ? 1.442 ? ? May be used with APC. Does not dissolve DR1 very well. Evaporates VERY quickly and leaves chunks. Highly toxic. Minimize Exposure- Carcinogen

Old Mixing Page Below

Link to Old Polymer mixing page
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