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Merck

523925

Sigma-Aldrich

Poly(acrylic acid) solution

average Mw ~100,000, 35 wt. % in H2O

Synonim(y):

PAA

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About This Item

Wzór liniowy:
(C3H4O2)n
Numer CAS:
Numer MDL:
Kod UNSPSC:
12162002
Identyfikator substancji w PubChem:
NACRES:
NA.23

masa cząsteczkowa

average Mw ~100,000

stężenie

35 wt. % in H2O

gęstość

1.14 g/mL at 25 °C

ciąg SMILES

OC(=O)C=C

InChI

1S/C3H4O2.Na/c1-2-3(4)5;/h2H,1H2,(H,4,5);/q;+1/p-1

Klucz InChI

NNMHYFLPFNGQFZ-UHFFFAOYSA-M

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Opis ogólny

Poly (acrylic acid) (PAA) is hygroscopic, brittle and colorless in nature with Tg at nearly 106oC. At temperatures above 200, up to 250oC, it loses water and becomes an insoluble crosslinked polymer anhydride. Solubility of dried PAA in water increases with rise in temperature. Concentrated solutions of PAA in water are thixotropic in nature.

Zastosowanie

PAA is used in the preparation of nano-hydroxyapatite polyacrylic acid (Hap/PAAc) biocomposites.†Other probable applications of PAA are: to study solute diffusion in Polyvinyl alcohol/PAA copolymer hydrogels†, synthesizing poly(N-isopropylacrylamide)-block-PAA copolymer which responds to both temperature and pH stimuli†, in preparing block copolymer of oligo (methyl methacrylate)/PAA for micellar delivery of hydrophobic drugs†, and as a thickening agent for adhesives.
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Hasło ostrzegawcze

Danger

Zwroty wskazujące rodzaj zagrożenia

Klasyfikacja zagrożeń

Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - STOT SE 3

Organy docelowe

Respiratory system

Kod klasy składowania

10 - Combustible liquids

Klasa zagrożenia wodnego (WGK)

WGK 1

Temperatura zapłonu (°F)

212.0 °F - closed cup

Temperatura zapłonu (°C)

100 °C - closed cup

Środki ochrony indywidualnej

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


Certyfikaty analizy (CoA)

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Dokumenty związane z niedawno zakupionymi produktami zostały zamieszczone w Bibliotece dokumentów.

Odwiedź Bibliotekę dokumentów

T Inoue et al.
Journal of controlled release : official journal of the Controlled Release Society, 51(2-3), 221-229 (1998-08-01)
An AB block copolymer of oligo(methyl methacrylate) (oMMA) and poly(acrylic acid) (PAAc) has been synthesized. The block copolymer forms micelles in an aqueous medium, as confirmed by a fluorescence probe technique using pyrene. Doxorubicin hydrochloride was incorporated into the micelle
P L Zeeuwen et al.
The Journal of investigative dermatology, 116(5), 693-701 (2001-05-12)
Using serial analysis of gene expression on cultured human keratinocytes we found high expression levels of genes putatively involved in host protection and defense, such as proteinase inhibitors and antimicrobial proteins. One of these expressed genes was the recently discovered
Yanxia Wang et al.
International journal of pharmaceutics, 441(1-2), 170-180 (2012-12-15)
A novel galactose-decorated cross-linked micelles (cl-micelles) with ionic cores using cystamine (Cys) as a biodegradable cross-linker was prepared by using block ionomer complexes of poly(ethylene glycol)-b-poly(2-acryloxyethyl-galactose)-b-poly(acrylic acid) (PEG-b-PAEG-b-PAA) and Ca(2+) (PEG-b-PAEG-b-PAA cl-micelles/Cys). Doxorubicin (DOX) was successfully incorporated into the ionic
Daniel L Miller et al.
The Annals of thoracic surgery, 95(3), 1050-1056 (2013-01-22)
Skeletal chest wall reconstruction can be a challenge, depending on the indication, location, and health of the patient; various materials are available. Recently, biomaterials that are remodelable (bovine pericardium patch; Veritas, Synovis Life Technologies Inc, St Paul, MN) or absorbable
Kang Zhong et al.
Carbohydrate polymers, 92(2), 1367-1376 (2013-02-13)
Phosphate rock (PHR), a traditional fertilizer, is abundant, but is hard to be utilized by plants. To improve the utilization of PHR, and to integrate water-retaining and controlled-release fertilizers, an agricultural superabsorbent polymer based on sulfonated corn starch/poly (acrylic acid)

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