Merck
CN
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48937

Supelco

Polystyrene standards, Low molecular weight

analytical standard, pkg of 1 kit

grade

analytical standard

Quality Level

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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