Merck
CN
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文件

323667

Sigma-Aldrich

聚丙烯酸

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别名:
PAA
CAS号:
9003-01-4
MDL编号:
MFCD00084394
PubChem化学物质编号:
24859410
NACRES:
NA.23

粘度

≤2000 cP

转变温度

Tg 106 °C

储存温度

2-8°C

InChI

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

InChI key

NNMHYFLPFNGQFZ-UHFFFAOYSA-M

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相关类别

一般描述

聚（丙烯酸）（PAA）在自然状态下具有吸湿性、脆性和且无色，Tg接近106oC。在高于200至250oC的温度下，它会失水并变成不溶的交联聚合物酸酐。干燥的PAA在水中的溶解度会随着温度的升高而提高。PAA在水中的浓缩液在自然状态下是具有触变性的。

应用

PAA的应用可包括：
  • 研究聚乙烯醇/PAA共聚物水凝胶中的溶质扩散
  • 合成可对温度和pH刺激产生相应的聚（N-异丙基丙烯酰胺）-嵌段-PAA共聚物
  • 作为粘合剂的增稠剂用于疏水性药物胶束递送的低聚（甲基丙烯酸甲酯）/PAA的嵌段共聚物的制备
  • 。

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. What is the appearance of Product 323667, Poly(acrylic acid)?

    This product is a powder or crystalline powder and/or chunks.

  4. What is the polydispersity of Product 323667, Poly(acrylic acid)?

    Unfortunately, polydispersity has not been determined for this product.

  5. What are the end groups of the polymer Poly(acrylic acid), Product 323667?

    Unfortunately, the end groups are not tested for.

  6. What is the tacticity of the polymer Poly(acrylic acid), Product 323667?

    This product is atactic.

  7. What solvents is Poly(acrylic acid), Product 323667, soluble in?

    This product is soluble in dioxane, ethanol, methanol, and water.

  8. How do I find price and availability?

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Sodium gadolinium fluoride (NaGdF4) nanoparticles are promising candidates as T1 shortening magnetic resonance imaging (MRI) contrast agents due to the paramagnetic properties of the Gd3+ ion. Effects of size and surface modification of these nanoparticles on proton relaxation times have
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
A New Double-Responsive Block Copolymer Synthesized via RAFT Polymerization: Poly (N-isopropylacrylamide)-b lock-poly (acrylic acid)
Schili CM, et al.
Macromolecules, 37(21), 7861-7866 (2004)
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
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