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BioSciences - Polysciences, Inc.

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294<br />

Microspheres & Particles<br />

Additional Particles Catalog # Size<br />

Polybead ® Poly(methyl methacrylate) Microspheres A2dm<br />

Poly(methyl methacrylate) or PMMA is less hydrophobic than polystyrene and should show reduced<br />

nonspecific protein and peptide binding. The density of these beads, 1.19 g/cc, is considerably<br />

higher than that of polystyrene beads, making them easier to concentrate by centrifugation. Beads<br />

are not free of surfactant and contain surface carboxylic acid groups at higher concentration than<br />

the standard Polybead ® Polystyrene Carboxylate Microspheres.<br />

Size Range % Solids<br />

Poly(methyl methacrylate) Microspheres with Anionic Surfactant 0.08-0.09µm 5% 23570-10 10 ml<br />

Poly(methyl methacrylate) Microspheres with Nonionic Surfactant 0.08-013µm 5% 23571-10 10 ml<br />

Poly(methyl methacrylate) Microspheres - Monodisperse 0.30µm 2.5% 12083-10 10 ml<br />

Poly(methyl methacrylate) Microspheres - Broad Distribution 1-10µm 5% 19130-10 10 ml<br />

Poly(ethyl methacrylate) Beads [9003-42-3] A2g<br />

Tough methacrylate resin. TSCA<br />

Poly(4-iodostyrene/styrene/divinylbenzene) ~58:40:2 [72330-89-3] U4g ...........<br />

Iodinated, crosslinked beads that can be further derivatized. 200-400 mesh.<br />

For more information please call (800) 523-2575 or visit: polysciences.com<br />

MW 50,000 Tg 65º 03197-250 250 g<br />

Polyethylene, Chromatographic Grade [9002-88-4] A2g<br />

Spherical particles. Hydrophobic, easily processed or fabricated, resin.<br />

Polyethylene, Chromatographic Grade<br />

Size Range<br />

3-45µm 15184-100 100 g<br />

15184-500 500 g<br />

Polypropylene, Chromatographic Grade [9003-07-0] A2g<br />

mp 165° Tg -13° TSCA [-CH CH(CH )-] 2 3 n<br />

Widely used polyolefin.<br />

Soluble in: chlorinated hydrocarbons, aromatic hydrocarbons, isoamyl acetate.<br />

Size Range<br />

Polypropylene, Chromatographic Grade 25-85µm 04342-100 100 g<br />

Polypropylene, Chromatographic Grade 150µm 06068-100 100 g<br />

Poly(styrene/divinyl benzene) [9003-70-7] A2g<br />

TSCA<br />

Beads for preparation of crosslinked poly(chloromethylstyrene) Merrifield resins and other<br />

functionalized beads.<br />

ratio mesh<br />

Poly(styrene/divinyl benzene) 92:8 200-400 04022-100 100 g<br />

Poly(styrene/divinyl benzene) 98:2 200-400 16724-100 100 g<br />

Poly(tetrafluoroethylene) [9002-84-0] A2g ...................................<br />

Nominal 35µm diameter. (Teflon ® 7A)<br />

Poly(4-vinylpyridine/divinylbenzene) Beads [19017-40-7] U7g ...................<br />

Used as an absorbent and ion-exchange resin.<br />

18148-5 5 g<br />

08816-100 100 g<br />

06579-10 10 g

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