747009

Poly(styrene)-block-poly(acrylic acid)

PS:PAA 30,000:2,000, PDI ≤1.1

• Synonyme(s) : PS-PAA, PS-PAA amphiphilic diblock copolymer
• Formule linéaire : C₄H₆N(C₈H₈)_x(C₃H₄O₂)_yH
• Code UNSPSC : 12352100
• Nomenclature NACRES : NA.23

Propriétés

• Niveau de qualité: 100
• Forme: powder
• Poids mol.: M_n 1,000-2,000 (poly(acrylic acid)); M_n 27,000-31,000 (polystyrene); M_n 28,000-33,000 (total)
• PDI: ≤1.1

Description

Application

Polystyrene-block-polyacrylic acid is a diblock copolymer used for making polymeric micelles/ vesicles (polymersomes) and other encapsulation applications, . This PS-block-PAA copolymer is 10 wt. % PAA; and should form micelles in water in the 100~200 nm range. The polystyrene degree of polymerization (DP) is 275 and the polyacrylic acid DP is 30.

Informations légales

Sold for research purposes only and subject to field restriction: see www.sigmaaldrich.com/raftlicense. Patents: 7,714,075; 7,250,479; 7,666,962; 6,642,318; 6,747,111; W2010/8356.

Informations sur la sécurité

• Pictogrammes: GHS07
• Mention d'avertissement: Warning
• Mentions de danger: H315,H319,H335
• Conseils de prudence: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Classification des risques: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Organes cibles: Respiratory system
• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable