746991

Polystyrene-block-poly(acrylic acid)

• Sinonimo/i: Poly(styrene)-block-poly(acrylic acid)
• Formula empirica (notazione di Hill): C₄H₆N(C₈H₈)_m(C₃H₄O₂)_nH
• Codice UNSPSC: 12352100
• NACRES: NA.23

Proprietà

• Stato: solid
• PM: M_n 27,000-31,000 (polystyrene); M_n 31,000-37,000 (total); M_n 4,000-6,000 (poly(acrylic acid))
• Punto di fusione: 258-263 °C
• Ind. polidispersione: ≤1.3

Descrizione

Applicazioni

Polystyrene-block-polyacrylic acid is a diblock copolymer used for making polymeric vesicles (polymersomes) and other encapsulation applications.1-9 This PS-block-PAA copolymer is 15 wt. % AA; and should form vesicles in water in the 100 nm range. The polystyrene degree of polymerization (DP) is 275 and the polyacrylic acid DP is 50.

Note legali

Sold for research purposes only.  Not for use in humans.  Before opening or using this product, please read the following terms and conditions.  Use of this product shall constitute acknowledgement and acceptance of these terms and conditions: Use of this product may be covered by one or more of the following US patents and corresponding claims outside the US: 7,714,075; 7,250,479; 7,666,962; 6,642,318; 6,747,111, and pending applications (W2010/8356).  For details contact Aldrich Chemical Company, Inc.

Informazioni sulla sicurezza

• Pittogrammi: GHS07
• Avvertenze: Warning
• Indicazioni di pericolo: H315,H319,H335
• Consigli di prudenza: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Classi di pericolo: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Organi bersaglio: Respiratory system
• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 3
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable