444790

Poly(tert-butylacrylat-co-ethylacrylat-co-methacrylsäure)

powder, methacrylic acid 23

• Synonym(e): Ethyl acrylate-methacrylic acid-tert -butyl acrylate copolymer
• Lineare Formel: [CH₂CH[CO₂C(CH₃)₃]₃]_x[CH₂CH(CO₂C₂H₅)]_y[CH₂C(CH₃)(CO₂H)]_Z
• CAS-Nummer: 159666-35-0
• MDL-Nummer: MFCD00241441
• UNSPSC-Code: 12162002
• PubChem Substanz-ID: 24868146
• NACRES: NA.23

Eigenschaften

• Beschreibung: K-value 34 - 40 DIN 53 726
• Form: powder
• Zufuhrverhältnis: methacrylic acid 23
• Säurezahl: 140‑160 mg KOH/g
• Übergangstemp.: T_g 75 °C
• Löslichkeit: water and ethanol: soluble in salt form
• Dichte: 0.4 g/mL at 25 °C (lit.)
• SMILES String: C\C=C\C(O)=O.CCOC(=O)C=C.CC(C)(C)OC(=O)C=C

Beschreibung

Allgemeine Beschreibung

Film forming thermoplastic.

Poly(tert-butyl acrylate-co-ethyl acrylate-co-methacrylic acid) (PTBEM) is an amphiphilic block copolymer.

Anwendung

Hair care products.

PTBEM can be used to prepare a site specific polymeric drug delivery system for prednisone, a steroidal anti-inflammatory drug.

Sicherheitshinweise

• Lagerklassenschlüssel: 10 - Combustible liquids
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable