746991

Polystyrene-block-poly(acrylic acid)

• Sinónimos: Poly(styrene)-block-poly(acrylic acid)
• Fórmula empírica (notación de Hill): C₄H₆N(C₈H₈)_m(C₃H₄O₂)_nH
• UNSPSC Code: 12352100
• NACRES: NA.23

Propiedades

• form: solid
• Quality Level: 100
• mol wt: M_n 27,000-31,000 (polystyrene); M_n 31,000-37,000 (total); M_n 4,000-6,000 (poly(acrylic acid))
• mp: 258-263 °C
• PDI: ≤1.3

Descripción

Application

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.

Legal Information

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.

Información de seguridad

• pictograms: GHS07
• signalword: Warning
• hcodes: H315 - H319 - H335
• pcodes: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable