48937
Polystyrene standards, Low molecular weight
analytical standard, pkg of 1 kit
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About This Item
UNSPSC Code:
12000000
grade
analytical standard
description
individually packaged, 250 mg each
CofA
current certificate can be downloaded
packaging
pkg of 1 kit
technique(s)
gel permeation chromatography (GPC): suitable
format
neat
storage temp.
2-30°C
General description
Low molecular weight polymers with controllable molecular-weight distribution (MWD), microstructure and molecular weight can be prepared by anionic polymerization in solution, in the presence of organolithium compounds. As the molecular weight of the polystyrene increases, physiochemical properties of the impact polystyrene increase, whereas rheological properties decrease.
Molecular weight values are established by size exclusion chromatography, and are nominal values. Actual average molecular weight is within +/- 15% of this value. Certificate of analysis included.
Application
Low molecular weight polystyrene can be used as an adhesive additive to asphalt. Polystyrene standards has been used in the calibration of the molecular weights of aqueous polymer samples obtained from microcalorimetric measurements whose peak molecular weight can be determined using gel permeation chromatography(GPC).
Polystyrene standards, Low molecular weight is used as a calibration standard for the gel permeation chromatographic (GPC) determination of molecular weight measurements of lignin extracted from poplar and pine, in the production of lignin-derived activated carbon (AC) materials.
Kit Components Only
Product No.
Description
- MW 2500 250 mg
- MW 5000 250 mg
- MW 9000 250 mg
- MW 17,500 250 mg
- MW 30,000 250 mg
- MW 50,000 250 mg
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Synthesis and modification of low-molecular-weight polybutadiene and polystyrene for use as adhesive additive to asphalt.
Pankov IV
Russian Journal of Applied Chemistry, 85 (10), 1627-1630 (2012)
Microcalorimetric detection of lower critical solution temperatures in aqueous polymer solutions
Schild.GH and Tirrell.AD
The Journal of Physical Chemistry, 94(10), 4352-4356 (1990)
Linking lignin source with structural and electrochemical properties of lignin-derived carbon materials
Li W, et al.
Royal Society of Chemistry Advances, 8(68), 38721-38732 (2018)
Effect of the molecular weight of the polystyrene matrix on the physicomechanical properties of impact polystyrene.
Grmela VP and Farka P
Polym. Chem., 7 (3), 482-484 (1971)
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