418870

Poly(acrylonitrile-co-butadiene), dicarboxy terminated

average M_n ~3,800, acrylonitrile 8-12 wt. %

• Linear Formula: HO₂C[CH₂CH(CN)]_x(CH₂CH=CHCH₂)_yCO₂H
• CAS Number: 68891-46-3
• MDL number: MFCD06591088
• UNSPSC Code: 12162002
• NACRES: NA.23

Properties

• form: viscous liquid
• specific activity: 1.9 carboxyl groups per molecule
• mol wt: average M_n ~3,800
• composition: acrylonitrile, 8-12 wt. %
• refractive index: n20/D 1.515 (lit.)
• viscosity: 600 poise(27 °C, Brookfield)(lit.)
• acid number: 28
• transition temp: T_g −66 °C (DSC)
• density: 0.924 g/mL at 25 °C
• InChI: 1S/C4H6.C3H3N/c1-3-4-2;1-2-3-4/h3-4H,1-2H2;2H,1H2
• InChI key: NTXGQCSETZTARF-UHFFFAOYSA-N

Description

Application

Component of epoxy-based adhesives, composites and coatings. Intermediate in corrosion-resistant vinyl esters, acrylated epoxies used in radiation curing and photopolymer printing plates.

Features and Benefits

Enhances impact strength, thermal shock, peel strength and crack resistance of epoxy compositions.

Safety Information

• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 3
• Flash Point(F): 235.4 °F - closed cup
• Flash Point(C): 113 °C - closed cup