Bis-PMMA/Polybutyl Acrylate Copolymer is a nitroxide-endcapped triblock copolymer of Butyl Acrylate and Methyl Methacrylate.
Definition
Bis-PMMA/Polybutyl Acrylate Copolymer is a nitroxide-endcapped triblock copolymer of Butyl Acrylate and Methyl Methacrylate. It is prepared by nitroxide-mediated controlled radical polymerization, wherein a difunctional initiator is used to first prepare a center block of Polybutyl Acrylate followed by further reaction with Methyl Methacrylate to form Polymethyl Methacrylate blocks on both ends of the Polybutyl Acrylate. It is chain terminated with ethyl phosphinate as shown in the formula:
Cosmetic roles
Safety & regulatory references
Not classified under Korea’s toxic-substance GHS list · existing chemical substance
More data — names, identifiers, properties, test records, literature
Names & identifiers
- CAS No.chemical registry number
- 25852-37-3
- EC No.EU chemical inventory number
- 630-433-6
- DTXSIDUS EPA chemical ID
- DTXSID20895096
Measured properties
- Colour
- white
- Upper/lower flammability or explosive limits
- - / -
- Relative density
- 1.06 ()
- Auto-ignition temperature
- 400 ℃
Values measured on the substance itself. The KOSHA data are a reference for writing and reviewing safety data sheets, not a specification for a commercial raw material.
Source: KOSHA safety data sheets (Korea)
What products actually use it for
What the 52 products reported to the US EPA with this ingredient use it for. Products outside cosmetics are included, so the top few rows are its main uses.
- Binder34
- Pigment7
- Processing aids not otherwise specified5
- Stabilizing agent3
- Surfactant (surface active agent)1
- Heat stabilizer1
- Cleaning agent1
Source: US EPA CompTox dashboard