Accéder au contenu
Merck
Toutes les photos(1)

Documents

746991

Sigma-Aldrich

Polystyrene-block-poly(acrylic acid)

Synonyme(s) :

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

Se connecterpour consulter vos tarifs contractuels et ceux de votre entreprise/organisme
Toutes les photos(1)

About This Item

Formule empirique (notation de Hill):
C4H6N(C8H8)m(C3H4O2)nH
Code UNSPSC :
12352100
Nomenclature NACRES :
NA.23

Forme

solid

Poids mol.

Mn 27,000-31,000 (polystyrene)
Mn 31,000-37,000 (total)
Mn 4,000-6,000 (poly(acrylic acid))

Pf

258-263 °C

PDI

≤1.3

Vous recherchez des produits similaires ? Visite Guide de comparaison des produits

Application

Polystyrene-block-polyacrylic acid is a diblock copolymer used for making polymeric vesicles (polymersomes) and other encapsulation applications.1-9 This PS-block-PAA copolymer is 15 wt. % AA; and should form vesicles in water in the 100 nm range. The polystyrene degree of polymerization (DP) is 275 and the polyacrylic acid DP is 50.

Informations légales

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.

Pictogrammes

Exclamation mark
GHS07

Mention d'avertissement

Warning

Mentions de danger

H315,H319,H335

Classification des risques

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

Organes cibles

Respiratory system

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

Déjà en possession de ce produit ?

Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Amphiphilic core?shell nanospheres obtained by intramicellar shell crosslinking of polymer micelles with poly(ethylene oxide) linkers
Haiyong Huang,
Chemical Communications (Cambridge, England), 13, 1415-1415 (1998)
Effect of Poly(acrylic acid) Block Length Distribution on Polystyrene-b-Poly(acrylic acid) Aggregates in Solution. 1. Vesicles
Owen Terreau,
Langmuir, 19, 5601-5607 (2003)
Multiple Morphologies of PAA-b-PSt Assemblies throughout RAFT Dispersion Polymerization of Styrene with PAA Macro-CTA
Wei-Dong He,
Macromolecules, 44, 3358-3365 (2011)
Qiang Tian et al.
Langmuir : the ACS journal of surfaces and colloids, 36(17), 4820-4826 (2020-04-11)
The interactions between natural colloidal organic matter and actinides in solutions are complex and not fully understood. In this work, a crew-cut polystyrene-b-poly(acry1ic acid) (PS-b-PAA) micelle is proposed as a model particle for humic acid (HA) colloid with the aim
Preparation of orthogonally-functionalized core Click cross-linked nanoparticles
Rachel K. O?Reilly,
New. J. Chem., 31, 718-724 (2007)
Afficher tous les articles scientifiques apparentés

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.

Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..

Contacter notre Service technique