Material Properties of Polystyrene and Poly(methyl ...

1 Tech Support Doc 0021. Material Properties of Polystyrene and Poly(methyl methacrylate). ( pmma ) Microspheres 9025 Technology Dr. Fishers, IN 46038 All of our Polystyrene and pmma ( Poly(methyl methacrylate)) microspheres -heat of solution are solid, non-porous polymer bead products. We do not empirically evalu- Polystyrene : kJ mol-1*. ate physical Properties of our polymer beads, but we anticipate that many pmma : n/a of the values associated with these Properties are similar to those values -melting point (Tm). reported in the scientific literature for the bulk polymers. A list of mate- Polystyrene : 240 C (250 C)*.

2 Rial Properties for bulk general purpose Polystyrene and pmma from the pmma : 130 C**. literature and other internet sources may be found below: -thermal conductivity [unit = W m-1 K-1]. Polystyrene : at 0 C; at 50 C; at 100 C;* ;**. ELECTRICAL Properties : BTU (in/hrft2 F)**. -dielectric constant ( ) pmma : at 0-50 C*. Polystyrene (amorphous): at 1kHz (curve flat to 1 GHz)*. pmma : at 50Hz, 25 C; at 1 KHz, 25 C; at 1 MHz, 25 C; at OPTICAL Properties : 30 GHz, 25 C; at 138 GHz, 25 C* -optical dispersion ( F - C). -dielectric strength Polystyrene : x 10-2 ( = , = )*. Polystyrene : (ASTM D 149): MV/m; 500-575 Volts/mil; pmma : n/a kV/mm** -NMR spectrum pmma : kV/mm** Polystyrene : peaks [ppm] at , (aromatic), (CH2)*.

3 -electrical conductivity pmma : n/a Polystyrene : 10-16 S/m** -refractive index pmma : n/a Polystyrene : nD = ( = )*; ( = ), -resistivity [unit = Ohm cm] ( = ), ( = ), ( = ), ( . Polystyrene : 1020 - 1022;* volume resistivity (ASTM D 257): x = 703nm), ( = 833nm), ( = 879nm), ( = 1052nm)**. 1017** pmma : nD = ( = 589nm); ne = ( = 546nm); ng = pmma : >1015*; 1014-1015** ( = 436nm)*; ( = ), ( = ), ( =. ), ( = ), ( = 703nm), ( = 833nm), THERMODYNAMIC Properties : ( = 879nm), ( = 1052nm)**. -coefficient of thermal expansion [unit = K-1] -UV spectrum (in vacuo). Polystyrene : linear: 6-8 x 10-5 (<T); volume: x 10-4 (<T^g), Polystyrene : absorption bands at 260nm, 194nm, and 80nm*.

4 X 10-4 (>T^g)* pmma : n/a pmma : linear: 7 x 10-5 (0-50 C); volume: x 10-4 (<T), - x 10-4 (<Tg), x 10-4 (>Tg)* MECHANICAL Properties : -density [unit = g/cm3] -coefficient of friction Polystyrene (amorphous): * Polystyrene : (20-80 C); (100 C); >2 (120 C); (100 C), pmma : (0 C); (20 C); (25 C); (Tg)* (110-120 C)*; **. -glass transition temperature (Tg) pmma : **. Polystyrene : 80-90 C* -Compressibility [unit = MPa-1]. pmma : 377-378 K (104-105 C)* Polystyrene : 220 x 10-6*. -heat capacity [Cp; unit = kJ kg-1 K-1] pmma : 245 x 10-6 (T = 20 C); 290 x 10-6 (T = 60 C); 355 x 10-6 (T =. Polystyrene : ( ) at 0 C; ( ) at 50 C; ( ) at 100 C); 390 x 10-6 (T = C); 500 x 10-6 (T = C); 530 x 10-6 (T =.)

5 100 C* C); 585 x 10-6 (T = C)*. pmma : at -173 C; at -100 C; at 0 C; ( ) at -compressive modulus [unit = MPa]. 25 C; ( ) at 100 C; ( ) at 120 C; ( ) at 180 C; Polystyrene : 3000 (unoriented)*. ( ) at 240 C; ( ) at 300 C* pmma : n/a -heat of combustion -compressive strength Polystyrene : x 103 kJ mol-1* Polystyrene : 83 MPa, 12,000 psi, 845 kg/cm3**. pmma : -26,200 kJ kg-1* pmma : 83 - 124 MPa**. -heat of fusion -elasticity modulus Polystyrene : +/- kJ mol-1* Polystyrene : n/a pmma : n/a pmma : 3300 MPa (25 C)*. -heat of polymerization -hardness Polystyrene : - kJ mol-1* Polystyrene : n/a pmma : kJ mol-1* pmma : GPA**.

6 Bangs Laboratories, Inc. Tech Support Doc 0021 Rev. #001, Active: 28/April/2015 << COPY >> Page 1 of 2. TECH SUPPORT DOC 0021. -Poisson's ratio Polystyrene : *. pmma : **. -shear modulus Polystyrene : 700-800 MPa**. pmma : 1700 MPa (dynamic, 25 C, 10Hz)*. -tensile strength Polystyrene : 32-60 MPa**. pmma : 48 76 MPa**. -Young's modulus (tensile modulus). Polystyrene : 3200-3400 MPa (unoriented)*; 3000-3500 MPa**. pmma : GPa**; 1800 3100 MPa**. CHEMICAL Properties : -solubility parameter ( [J/m3]1/2 * 10-3). Polystyrene : *. pmma : *. -solubility parameter ( [cal/cm3]1/2). Polystyrene : *. pmma : *. REFERENCES: * Physical Constants of Polystyrene and Physical Constants of Poly(methyl methacrylate) and Solubility Parameter Values in Polymer Handbook, 2nd Ed.

7 Eds. Brandrup, J.; Immergut, ; Grulke, , 2nd Edi- tion, New York, NY: John Wiley, 1975. ** Dow's Stryon Asia Limited Design Guide ** Sultanova N, Kasarova S, Nikolov I. (2009) Dispersion Properties of Optical Polymers. Acta Physica Polonica A.;116(4):585-7. ** Bhushan B, Burton Z. (2005) Adhesion and friction Properties of poly- mers in microfluidic devices. Nanotechnology.;16:467-78. ** IDEMAT Materials Selection Guide (2003). ** CAE DS Injection Moulding Materials, Polymethacrylates; Poly (methyl methacrylate) ( pmma ); Technical University of Gabrovo Milena Koleva ** CE Carraher Jr. Carraher's Polymer Chemistry, 8th Ed.

8 Boca Raton, FL: CRC Press, 2010. Bangs Laboratories, Inc. Tech Support Doc 0021 Rev. #001, Active: 28/April/2015 << COPY >> Page 2 of 2.