Microsphere matrices confer a range of properties that will impact different aspects of handling, processing and use. The following values are as reported in the literature for the bulk material, and are provided as estimates only. Click to download pdf version.

Composition Abbreviation Density(g/cm3) Refractive Index(nD at 589 nm) Glass Transition Temp (Td), °C
Polystyrene PS 1.05 1.59 95
Polystyrene / Divinylbenzene

P(S/DVB)

P(S/2%DVB)

P(S/10%DVB)

-

1.062

1.067

-

-

-

-

99

114

Polymethylmethacrylate PMMA 1.19 1.49 105
Silica (SiO2, silicon dioxide) Silica 2.0 ≈1.43 – 1.46 >>1000

References

Polymer Handbook, Fourth Edition. (2003, J. Brandrup, E.H. Immergut, E.A. Grulke. ISBN:  0471479365)
Styrene: Its Polymers, Copolymers and Derivatives. (1952, R.H. Boundy, R.F. Boyer [Reinhold]) ISBN: 0028417003
The Chemistry of Silica:  Solubility, Polymerization, Colloid and Surface Properties, and Biochemistry.  (1979 R.K. Iler, ISBN:  0-471-02404-X)