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Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is mainly used in polymer synthesis and industrial formulations.
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is used polymer and Resin Production, Acrylic polymers, Latex dispersions, Polymer emulsions, Water-borne coatings.
CAS Number: 70879-51-5
EC (EINECS) Number: Not always assigned / may not be listed in some databases
Chemical Type: PEG Methacrylate Monomer
Chemical Class: Methacrylic acid ester / polymerizable monomer
Molecular Formula: C70H138O27 or C72H142O27
Molecular Weight: ≈ 1411.9 – 1439.9 g/mol
SYNONYMS:
Stearyl Polyethylene Glycol Methacrylate 1100, SPEGMA 1100, Methacrylic acid ester of stearyl polyethylene glycol, Poly(oxy-1,2-ethanediyl) α-(2-methyl-1-oxo-2-propenyl)-ω-hydroxy C16-18 alkyl ether, PEG-1100 stearyl methacrylate, Methacrylate PEG stearyl ether, Polyethylene glycol stearyl methacrylate
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is a specialty methacrylate monomer widely used in polymer chemistry and industrial formulations.
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) belongs to the family of polyethylene glycol (PEG) methacrylates, which are functional monomers designed to introduce both hydrophilic and hydrophobic segments into polymer structures.
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) typically consists of three main structural parts: a methacrylate reactive group, a polyethylene glycol chain (approximately molecular weight 1100), and a long hydrophobic stearyl (C18) alkyl chain.
This amphiphilic molecular architecture makes Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) particularly valuable in designing advanced polymer systems with controlled rheology, surface activity, and compatibility with water-based formulations.
Due to its amphiphilic structure, Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) also functions as a copolymerizable surfactant and dispersing agent.
The polyethylene glycol segment, Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100), improves water solubility and compatibility with polar media, while the long hydrocarbon chain interacts with nonpolar components.
This dual functionality allows Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) to stabilize emulsions, disperse pigments or hydrophobic materials, and maintain stable suspensions in polymer systems.
As a result, Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is frequently incorporated into acrylic latexes, polymer dispersions, coatings, adhesives, and specialty resins.
Another significant advantage of Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is its influence on polymer performance properties.
Polymers derived from PEG methacrylates tend to have relatively low glass-transition temperatures, which improves flexibility and reduces brittleness in the final material.
This property is important for coatings and adhesives that must maintain mechanical stability over a wide temperature range.
Additionally, polymers containing Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) units often exhibit improved film formation, adhesion, hydrolytic stability, and weather resistance, making them suitable for advanced industrial coatings and water-borne polymer systems.
Beyond industrial polymers, Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) can also be used in personal care formulations.
In cosmetic products such as shampoos, lotions, and gels, derivatives of Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) are incorporated into thickening polymers that control viscosity and stabilize emulsions.
These polymers help produce clear gels, maintain foam stability, and improve the sensory characteristics of formulations by providing a smooth, non-greasy texture.
They are especially useful in modern sulfate-free surfactant systems, which are often difficult to thicken with conventional agents.
In terms of handling and storage, Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is typically stabilized with inhibitors such as MEHQ (monomethyl ether hydroquinone) or BHT to prevent premature polymerization.
Because the inhibitor system requires oxygen to remain effective, Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) should be stored in containers with access to air rather than under inert gas atmospheres.
Excessive heating or prolonged storage at elevated temperatures can trigger polymerization reactions, which is why recommended storage temperatures are usually below about 20–25 °C.
Overall, Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is considered an important functional monomer in modern polymer chemistry.
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100)'s amphiphilic molecular structure allows chemists to design polymers with controlled viscosity, improved dispersion stability, and enhanced compatibility with water-based systems.
These characteristics make Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) valuable in a wide range of industrial sectors, including coatings, adhesives, oilfield chemicals, pulp and paper processing, and personal care formulations.
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is a monofunctional monomer consisting of a methacrylate group with a characteristic high reactivity and a cyclic hydrophobic group.
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) forms homopolymers and copolymers.
Copolymers of Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) can be prepared with (meth)acrylic acid and its salts, amides, and esters, and with (meth)acrylates, acrylonitrile, maleic acid esters, vinyl acetate, vinyl chloride, vinylidene chloride, styrene, butadiene, unsaturated polyesters and drying oils, etc.
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) forms homopolymers and copolymers.
Copolymers of Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) can be prepared with (meth)acrylic acid and its salts, amides and esters, and with (meth)acrylates, acrylonitrile, maleic acid esters, vinyl acetate, vinyl chloride, vinylidene chloride, styrene, butadiene, unsaturated polyesters and drying oils, etc.
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is a methacrylate-based monomer consisting of a polyethylene glycol chain attached to a stearyl group and a polymerizable methacrylate group.
USES and APPLICATIONS of STEARYL POLYETHYLENEGLYCOL METHACRYLATE 1100 (SPEGMA 1100):
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is mainly used in polymer synthesis and industrial formulations.
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is used polymer and Resin Production, Acrylic polymers, Latex dispersions, Polymer emulsions, Water-borne coatings.
Industrial Applications of Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100): Coatings and Paints, Rheology control, Film flexibility, Scratch resistance, Adhesives and Sealants, Performance modifier in acrylic adhesives, Paper and Pulp Industry, Surface modification additives.
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is used Personal Care Products, Polymer dispersants, Thickening systems, Oilfield Chemicals, Polymer additives for drilling fluids, Life Science and Specialty Polymers, Functional polymer synthesis.
In polymer science, Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) functions as a polymerizable monomer capable of free-radical polymerization, meaning that its methacrylate double bond can react with other vinyl or acrylic monomers to form long polymer chains.
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) can produce homopolymers (polymers composed entirely of SPEGMA units) or more commonly copolymers when combined with monomers such as acrylic acid, methacrylates, acrylonitrile, vinyl acetate, styrene, butadiene, or maleic acid derivatives.
Because of Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100)'s PEG segment, the resulting polymers often exhibit enhanced water compatibility, flexibility, and dispersibility, while the stearyl group contributes hydrophobic interactions and structural stability.
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) easily entering into the reaction of accession with a wide range of organic and inorganic substances, is used for the synthesis of organic low molecular weight substances.
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is an ester of Methacrylic Acid and is used as a raw material component in the synthesis of polymers.
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is mainly used as a raw material for polymer synthesis, forming homopolymers and copolymers with various vinyl and acrylic monomers.
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) contains both hydrophilic polyethylene glycol segments and hydrophobic alkyl chains, giving it amphiphilic properties useful in polymer modification and associative thickening systems.
-Applications areas:
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is used in the preparation of solid polymers, acrylic dispersions, and Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is applied in the production of:
*Coatings
*Pulp & Paper
*Adhesives
*Personal care
*Oilfield chemicals
*Life Science
USAGE IN INDUSTRIAL FORMULATIONS of STEARYL POLYETHYLENEGLYCOL METHACRYLATE 1100 (SPEGMA 1100):
Typical usage of Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) depends on polymer formulation but often ranges:
0.5 – 10% in copolymer formulations
Small percentages of Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) used as hydrophobic comonomer in associative thickeners
These concentrations allow modification of polymer rheology and performance properties.
FEATURES & BENEFITS of STEARYL POLYETHYLENEGLYCOL METHACRYLATE 1100 (SPEGMA 1100):
*Hydrophobicity
*Hydrophilicity
*Rheology modification (associative thickening)
*Dispersibility
*Low (Tg) glass transition temperature
*Low volatility due to high molecular weight
CHARACTERISTICS of STEARYL POLYETHYLENEGLYCOL METHACRYLATE 1100 (SPEGMA 1100):
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is a structure-activity relationship in associative thickening: in alkaline soluble emulsions/polymers, small amounts of hydrophobic comonomers like SPEGMA interact with each other and create thickening when interacting with other monomer chains.
POLYMER ENGINEERING BENEFITS of STEARYL POLYETHYLENEGLYCOL METHACRYLATE 1100 (SPEGMA 1100):
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) improves rheology control
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) enhances thickening efficiency
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) provides amphiphilic functionality
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) improves dispersion stability
Increases flexibility of polymer films
Reduces volatility of polymer systems
COATING AND ADHESIVE BENEFITS of STEARYL POLYETHYLENEGLYCOL METHACRYLATE 1100 (SPEGMA 1100):
*Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is improved adhesion
*Better film formation
*Enhanced mechanical properties
*Increased scratch resistance
*Improved hydrolytic stability
FUNCTIONAL PROPERTIES of STEARYL POLYETHYLENEGLYCOL METHACRYLATE 1100 (SPEGMA 1100):
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) provides several functional properties in polymer systems:
*Associative thickening agent
*Rheology modifier
*Dispersing agent
*Polymerizable surfactant
*Hydrophilic-hydrophobic balance modifier
*Low volatility monomer
*Flexibility modifier in polymer networks
KEY FUNCTIONAL EFFECTS of STEARYL POLYETHYLENEGLYCOL METHACRYLATE 1100 (SPEGMA 1100):
*Hydrophobicity and hydrophilicity balance
*Low glass transition temperature
*Improved polymer flexibility
*Enhanced dispersion stability
CHARACTERISTICS of STEARYL POLYETHYLENEGLYCOL METHACRYLATE 1100 (SPEGMA 1100):
One of the most important characteristics of Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is its associative thickening behavior.
In many aqueous polymer systems—particularly alkaline-soluble acrylic emulsions—small amounts of hydrophobic monomers like Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) interact with each other and with other polymer chains through hydrophobic associations.
These interactions create temporary network structures in solution, increasing viscosity and improving the rheological properties of the formulation.
This mechanism is the basis of HASE (hydrophobically modified alkali-soluble emulsion) technology, which is widely used in coatings, personal care formulations, and latex dispersions.
CHEMICAL PROPERTIES of STEARYL POLYETHYLENEGLYCOL METHACRYLATE 1100 (SPEGMA 1100):
Chemical Structure:
Methacrylate ester containing PEG chain and stearyl group
Polymerizable Functional Group:
Methacrylate double bond
Reactivity:
Undergoes free-radical polymerization
Polymer Formation:
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) forms homopolymers and copolymers
Copolymerization Compatibility:
*Acrylic acid
*Methacrylates
*Acrylonitrile
*Vinyl acetate
*Vinyl chloride
*Styrene
*Butadiene
*Maleic acid esters
Amphiphilic character (hydrophobic alkyl + hydrophilic PEG chain)
Low glass transition temperature
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) is capable of associative interactions in polymer networks
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) reacts with many organic and inorganic compounds via addition reactions
Monofunctional methacrylate monomer.
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) contains polyethylene glycol chain (~1100 molecular weight PEG segment).
Long hydrophobic stearyl chain (C18 alkyl group)
Amphiphilic structure (hydrophilic + hydrophobic segments)
Suitable for radical polymerization systems
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) provides rheology modification and thickening in polymer emulsions
Stearyl Polyethyleneglycol Methacrylate 1100 (SPEGMA 1100) exhibits good dispersibility and compatibility with acrylic systems
PHYSICAL and CHEMICAL PROPERTIES of STEARYL POLYETHYLENEGLYCOL METHACRYLATE 1100 (SPEGMA 1100):
Form: Liquid
Colour: Colourless
Odour: Acrylic-like
Odour Threshold: Not determined
pH Value: 3.0–4.5 (measured with the undiluted substance)
Melting Point: 1 °C
Boiling Range: 100–160 °C (substance decomposes; values estimated based on components)
Flash Point: Approx. 70 °C (ISO 2592; pilot light extinguishes, no flash point measured up to indicated temperature)
Evaporation Rate: Can be approximated from Henry’s Law constant or vapor pressure
Flammability: Hardly combustible (derived from flash point)
Lower Explosion Limit: 1.6 % (V) at 65 °C (estimated from components)
Upper Explosion Limit: Not relevant for classification and labelling
Ignition Temperature: 423 °C (DIN EN 14522)
Vapour Pressure:
125.9 hPa at 50 °C
160.52 hPa at 55 °C
73.0 hPa at 40 °C
Density:
1.0583 g/cm³ at 15 °C
1.0541 g/cm³ at 20 °C
1.0277 g/cm³ at 50 °C
1.0233 g/cm³ at 55 °C
Relative Density: 1.0541 at 20 °C
Relative Vapour Density (air): >1 at 20 °C (heavier than air, estimated)
Solubility: Miscible in water
Partition Coefficient n-octanol/water (log Kow): Not determined
Self-Ignition: Not self-igniting
Thermal Decomposition: Not self-decompositionable
Viscosity, Kinematic: 110 mm²/s at 23 °C (DIN 51562)
Explosion Hazard: Not explosive
Fire Promoting Properties: Not classified as oxidizing
Purity: 60 ± 3 %
Acid Value: 20 ± 2 %
Water Content: 20 ± 2 %
Color (APHA): Max. 100
Physical Properties:
Appearance: Clear, colorless
Physical Form: Liquid
Molecular Weight: 1411.9–1439.9 g/mol
Glass Transition Temperature (Tg): –58 °C
Density: 1.05 g/cm³ at 20 °C
Boiling Point: n/a
Melting Point: 0.9 °C
Vapor Pressure: n/a
pH (aqueous dispersion): 3–4.5
Viscosity: Moderate (depends on formulation)
Solubility: Partially soluble in water; soluble in organic solvents; compatible with many acrylic monomers
Volatility: Low volatility
Flash Point: Not typically classified as highly flammable
Chemical Information:
Chemical Name: Stearyl Polyethylene Glycol Methacrylate 1100
Common Name: SPEGMA 1100
CAS Number: 70879-51-5
EC (EINECS) Number: Not always assigned / may not be listed in some databases
Chemical Type: PEG Methacrylate Monomer
Chemical Class: Methacrylic acid ester / polymerizable monomer
Molecular Formula: C70H138O27 or C72H142O27
Product Specification Values (Typical):
Assay (Purity): 60 ± 3 %
Water Content: 20 ± 3 %
Acid Content (as methacrylic acid): 20 ± 3 %
Color (APHA): ≤100
Stabilizers:
MEHQ Inhibitor: 40 ± 20 ppm
BHT: 250 ± 50 ppm
FIRST AID MEASURES of STEARYL POLYETHYLENEGLYCOL METHACRYLATE 1100 (SPEGMA 1100):
-Description of first-aid measures
*General advice:
Show this material safety data sheet to the doctor in attendance.
*If inhaled:
After inhalation:
Fresh air.
*In case of skin contact:
Take off immediately all contaminated clothing.
Rinse skin with
water/ shower.
*In case of eye contact:
After eye contact:
Rinse out with plenty of water.
Call in ophthalmologist.
Remove contact lenses.
*If swallowed:
After swallowing:
Immediately make victim drink water (two glasses at most).
Consult a physician.
-Indication of any immediate medical attention and special treatment needed.
No data available
ACCIDENTAL RELEASE MEASURES of STEARYL POLYETHYLENEGLYCOL METHACRYLATE 1100 (SPEGMA 1100):
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains.
Collect, bind, and pump off spills.
Observe possible material restrictions.
Take up dry.
Dispose of properly.
Clean up affected area.
FIRE FIGHTING MEASURES of STEARYL POLYETHYLENEGLYCOL METHACRYLATE 1100 (SPEGMA 1100):
-Extinguishing media:
*Suitable extinguishing media:
Carbon dioxide (CO2)
Foam
Dry powder
*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.
-Further information:
Prevent fire extinguishing water from contaminating surface water or the ground water system.
EXPOSURE CONTROLS/PERSONAL PROTECTION of STEARYL POLYETHYLENEGLYCOL METHACRYLATE 1100 (SPEGMA 1100):
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection.
Safety glasses
*Body Protection:
protective clothing
*Respiratory protection:
Recommended Filter type: Filter A
-Control of environmental exposure:
Do not let product enter drains.
HANDLING and STORAGE of STEARYL POLYETHYLENEGLYCOL METHACRYLATE 1100 (SPEGMA 1100):
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed.
Dry.
STABILITY and REACTIVITY of STEARYL POLYETHYLENEGLYCOL METHACRYLATE 1100 (SPEGMA 1100):
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature).
-Possibility of hazardous reactions:
No data available
