Polyquaternium-11 Pq-11 CAS 53633-54-8

• Customization: Available
• CAS No.: 53633-54-8
• Formula: (C8h15no2)X.(C6h9no)Y.(C4h10o4s)Z
• Model NO.: 20%
• Type: Synthesis Material Intermediates
• Appearance: Liquid
• Quality: Industrial
• Colour: Colorless
• Specification: 20%
• Trademark: JinYu
• Origin: China

Product Description

Product Description

Basic Information

• English Name: Polyquaternium-11
• Chemical Name: Quaternized copolymer of methyl vinyl ether/maleic anhydride
• CAS Number: 53633-54-8
• Structural Features: Formed by copolymerizing methyl vinyl ether (MVE) and maleic anhydride (MA), with cationic groups (e.g., dimethylaminoethyl ester) introduced via quaternization to create a water-soluble polymer with positive charges, combining cationic adsorption and hydrophilicity from carboxylic acid groups.

Physical Properties

Property	Typical Data
Appearance	Colorless to pale yellow transparent viscous liquid (aqueous solution)
Solid Content	20%-30% (common industrial specification)
pH Value	4.0-7.0 (10% aqueous solution)
Density	1.05-1.15 g/cm³ (25ºC)
Solubility	Soluble in water, miscible with polar solvents like ethanol and propylene glycol
Viscosity	500-5000 mPa·s (25ºC, increasing with molecular weight)

Chemical Properties

1. Cationic Characteristics:
   • The permanent positive charge from quaternary ammonium groups (−N+(CH3)2CH2CH2OH) allows adsorption onto negatively charged surfaces (e.g., hair, skin, fibers), providing antistatic, conditioning, and adhesive properties.
2. Reactivity:
   • Residual carboxylic acid groups on the main chain can be neutralized with bases (e.g., triethanolamine) to adjust pH;
   • When compounded with anionic surfactants (e.g., SLS), the ratio must be controlled to avoid charge neutralization and precipitation.
3. Stability:
   • Heat resistance: Stable in aqueous solution below 80ºC; prolonged high-temperature heating may cause degradation;
   • Electrolyte tolerance: Moderate tolerance to inorganic salts; high salt concentrations (e.g., NaCl > 5%) may reduce charge density.

Main Applications

1. Personal Care Industry (Core Application):
   • Shampoos/Conditioners:
     • Adsorbs onto hair surfaces to form a protective film, repair cuticles, and improve combability and shine;
     • Strong antistatic effects, suitable for dry and damaged hair (e.g., Pantene and L'Oréal series containing Polyquaternium-11).
   • Body Washes/Skin Care Products:
     • Enhances skin smoothness and reduces tightness after cleansing;
     • Acts as a co-emulsifier to stabilize emulsion systems.
   • Hair Sprays/Styling Products:
     • Excellent film-forming properties provide flexible styling with hair moisturization (e.g., mousses, styling sprays).
2. Textile Industry:
   • Softeners and Antistatic Agents: Adsorbs onto fiber surfaces to reduce friction and improve fabric hand feel and antistatic performance.
3. Paper Industry:
   • Retention Agents and Strengthening Agents: Improves filler and fine fiber retention through charge adsorption, enhancing paper strength.

Advantages and Safety

• Core Advantages:
  • Multifunctionality: Combines cationic conditioning, film-forming, and antistatic effects with strong formula compatibility;
  • Mildness: Low irritation (ophthalmic tests show no severe irritation), suitable for baby care products;
  • Environmental Friendliness: More biodegradable than traditional quaternary ammonium salts (e.g., D1821), compliant with EU ECOCERT standards.
• Safety Considerations:
  • Compatibility Warnings: Avoid direct compounding with strong anionic surfactants (e.g., sodium dodecylbenzene sulfonate); dilute first and mix slowly;
  • Storage Conditions: Store in a cool, sealed place away from high temperatures and direct light, with a typical shelf life of 2 years.

Typical Technical Specifications (Cosmetic Grade)

Item	Standard Value
Solid Content	25.0%±1.0%
Degree of Quaternization	65%-75%
pH Value (10% Solution)	5.5-6.5
Heavy Metals (as Pb)	≤10 ppm
Microbiological Indicators	Total plate count ≤100 CFU/g, molds/yeasts ≤10 CFU/g

Product Parameters

 

Packaging & Shipping

Liquid products	Drum of 5kg ,10 kg ,25 kg ,50 kg 200 kg ,250 kg . 1000 kg IBC drum. TANK with 20 tons ,25 tons .
Solid products	Bag of 1 kg ,2 kg ,5 kg ,25 kg ,500kg ,1000 kg . Drum of 25 kg and 50 kg.

Packaging can be customized according to customer requirements.

Company Profile

Qingdao Jinyu Chemical Co., LTD,which is located in Qingdao City, China, with registered capital of RMB 10 million, is a dynamic chemical import and export enterprise with customer demand as its own responsibility. The founder has been engaged in the chemical industry for more than 20 years. With professional technical and marketing personnel, diversified cooperative factories with synthetic technology and efficient logistics management, we provide services to customers all over the world. After years of hard work, we have selected a number of excellent chemical production cooperative enterprises in China. These enterprises have their own advantages in different chemical synthesis fields. They have passed the strict inspection of suppliers by many customers and formed a long-term and stable strategic partnership with customers. With our partners' excellent equipment, well-trained employees and mature technology, we also continue to provide customers with more products.

Our Advantages