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Merck
CN

746983

聚(苯乙烯)-嵌段-聚(丙烯酸)

average Mn 38,000, 20 wt. % PAA, PDI ≤1.3

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经验公式（希尔记法）:
C4H6N(C8H8)m(C3H4O2)nH
NACRES:
NA.23
UNSPSC Code:
12352100

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form

powder

mol wt

Mn 27,000-33,000 (polystyrene), Mn 34,000-42,000 (total), Mn 7,000-9,000 (poly(acrylic acid)), average Mn 38,000

PDI

≤1.3

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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 20 wt. % AA; and should form micelles in water in the 30~50 nm range. The polystyrene degree of polymerization (DP) is 275 and the polyacrylic acid DP is 120.

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.

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.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

存储类别

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
MKCL2446
MKBX7436V
MKBQ5846V

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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

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