54182-57-9

Basic information

• Product Name: Carbomer
• Synonyms: Carbopol
• CAS NO: 54182-57-9
• Molecular Formula: -[-CH2-CH-]N-COOH
• Molecular Weight: 0
• EINECS: 202-415-4
• Mol File: 54182-57-9.mol
• Article Data: 0

Chemical Properties

• Boiling Point: 116 °C
• Appearance: white powder
• Density: 1.09 (30% aq.)
• CAS DataBase Reference: Carbomer(CAS DataBase Reference)
• NIST Chemistry Reference: Carbomer(54182-57-9)
• EPA Substance Registry System: Carbomer(54182-57-9)

Safety Data

• Safety Statements: S24/25:Avoid contact with skin and eyes.
• Hazardous Substances Data: 54182-57-9(Hazardous Substances Data)

Usage

Description

Carbomer is a polymer with the formula (CH2-CHCO2H)n, derived from acrylic acid (CH2=CHCO2H). It is known for its variety of homopolymers, copolymers, crosslinked polymers, and partially deprotonated derivatives, which hold commercial value. In a water solution at neutral pH, Carbomer is an anionic polymer, with many of its side chains losing their protons and acquiring a negative charge. As a polyelectrolyte, it has the ability to absorb and retain water, swelling to many times its original volume. These properties, including its acid-base and water-attracting characteristics, form the basis for its numerous applications.

Uses

Used in Superabsorbent Applications:
Carbomer is used as a superabsorbent for its ability to absorb and retain water, swelling to many times its original volume. This property makes it ideal for applications where water absorption and retention are crucial.
Used in Detergents and Dispersants:
Carbomer is used as an ingredient in detergents and dispersants, accounting for about 25% of its total usage. Its water-absorbing and polyelectrolyte properties contribute to the effectiveness of these products.
Used in Disposable Diapers:
Carbomer is used in the production of disposable diapers, where its superabsorbent qualities help to manage and retain liquid, providing comfort and functionality to the user.
Used in Superabsorbent Polymers (SAPs):
Carbomer is a key component of Superabsorbent Polymers (SAPs), which are cross-linked polyacrylates capable of absorbing and retaining more than 100 times their own weight in liquid. These polymers are widely used in various applications due to their exceptional water-absorbing capabilities.
Used in Hydrogels for Wound Healing:
Hydrogels derived from Carbomer have been extensively studied for their potential use as bandages and aids for wound healing. The water-attracting and acid-base properties of Carbomer make it a suitable candidate for these medical applications, where effective management of moisture and interaction with biological tissues are essential.

Structure

Polyacrylic acid is a polyolefin.?It can be viewed as polyethylene with carboxylic acid (CO2H) substituents on alternating carbons.?Owing to these groups, alternating carbon atoms in the backbone are stereogenic (colloquially: chiral).?For this reason, acrylic acid exists in atactic, syndiotactic, and isotactic forms, although this aspect is rarely discussed.?The polymerization is initiated with radicals and is assumed to be stereorandom.?Crosslinking can be introduced in many ways.

InChI:InChI=1/C3H4O2/c1-2-3(4)5/h2H,1H2,(H,4,5)