686794
Poly(styrene)-block-poly(acrylic acid)
Synonym(s):
PS-PAA, PS-PAA amphiphilic diblock copolymers, Polystyrene-polyacrylic acid polymersome forming polymer
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About This Item
Linear Formula:
Br[(C6H5)CHCH2]x [(CO2H)CHCH2]y C(CH3)2C(O)OCH2CH3
UNSPSC Code:
12162002
mol wt
Mn 1,890-2,310 (poly(acrylic acid)), Mn 4.500-6,820 (polystyrene), Mn 6,500-9,130
solubility
THF: soluble
Mw/Mn
1.1‑1.3
General description
Made by Atom Transfer Radical Polymerization (ATRP) which introduces methoxy and bromide end groups.
Application
Block copolymer used for making polymeric vesicles (polymersomes) and other encapsulation applications.
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signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
13 - Non Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Regulatory Information
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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.
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