Skip to Content
Merck
CN
All Photos(1)

Documents

747009

Sigma-Aldrich

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

PS:PAA 30,000:2,000, PDI ≤1.1

Sign Into View Organizational & Contract Pricing
All Photos(1)
Synonym(s):
PS-PAA, PS-PAA amphiphilic diblock copolymer
Linear Formula:
C4H6N(C8H8)x(C3H4O2)yH
UNSPSC Code:
12352100
NACRES:
NA.23

Quality Level

100

form

powder

mol wt

Mn 1,000-2,000 (poly(acrylic acid))
Mn 27,000-31,000 (polystyrene)
Mn 28,000-33,000 (total)

PDI

≤1.1

Related Categories

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.

Legal Information

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.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Dennis E Discher et al.
Science (New York, N.Y.), 297(5583), 967-973 (2002-08-10)
Vesicles are microscopic sacs that enclose a volume with a molecularly thin membrane. The membranes are generally self-directed assemblies of amphiphilic molecules with a dual hydrophilic-hydrophobic character. Biological amphiphiles form vesicles central to cell function and are principally lipids of
Kaoutar Moumile et al.
Journal of clinical microbiology, 42(2), 923-924 (2004-02-10)
We describe a case of primary purulent culture-negative pericarditis caused by Neisseria meningitidis serogroup C occurring in an 8-month-old previously healthy boy, which was detected in pericardial fluid by broad-spectrum PCR amplification.

Articles

Functional RAFT Polymers for Biomedical Applications

Reversible addition–fragmentation chain transfer (RAFT) polymerization is rapidly moving to the forefront in construction of drug and gene delivery vehicles.

Polymersomes for Drug Delivery

The development of drugs that target specific locations within the human body remains one of the greatest challenges in biomedicine today.

Functional Biomaterials Synthesized by Double-Head Polymerization Agents

Over the past two decades, the rapid advance of controlled living polymerization (CLP) techniques.

Flash NanoPrecipitation (FNP) – Principles and Applications in Medical Imaging and Drug Delivery

Professor Robert K. Prud’homme introduces flash nanoprecipitation (FNP) for nanoparticle fabrication, which is a scalable, rapid mixing process for nanoparticle formulations.

See All

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service