25639-21-8

Basic information

• Product Name: POLY(OCTADECYL METHACRYLATE)
• Synonyms: POLY(OCTADECYL METHACRYLATE), SOLUTION I N TOLUENE, AVERAGE MW CA. 170,000 (GP;40%soln.intoluene;Poly(octadecyl methacrylate), solution in toluene, average MW ca. 170.000 (GPC);poly(octadecyl methacrylate) solution;OCTADECYL METHACRYLATE RESIN (IN TOLUENE, UNIT WEIGHT DOES NOT INCLUDE WT. OF SOLVENT);octadecyl methacrylate homopolymer;Octadecyl methacrylate polymer;POLY(OCTADECYL METHA
• CAS NO: 25639-21-8
• Molecular Formula: C22H42O2
• Molecular Weight: 338.56768
• Product Categories: Acrylics;Hydrophobic Polymers;Methacrylate PolymersSelf Assembly&Contact Printing;PMMA-Based Resins;Stamps for Nanoprint Lithography&Microcontact Printing;Contact Printing;Hydrophobic Polymers;Materials Science;Methacrylate Polymers;Micro/NanoElectronics;Microcontact Printing;PMMA-Based Resins;Polymer Science;Polymers;Self Assembly &Stamps for Nanoprint Lithography &
• Mol File: 25639-21-8.mol
• Article Data: 9

Chemical Properties

• Melting Point: 36 °C
• Flash Point: 45 °F
• Appearance: Colorless Liquid
• CAS DataBase Reference: POLY(OCTADECYL METHACRYLATE)(CAS DataBase Reference)
• NIST Chemistry Reference: POLY(OCTADECYL METHACRYLATE)(25639-21-8)
• EPA Substance Registry System: POLY(OCTADECYL METHACRYLATE)(25639-21-8)

Safety Data

• Hazard Codes: F,Xn
• Statements: 11-38-48/20-63-65-67
• Safety Statements: 36/37-46-62-16
• RIDADR: UN 1993 3/PG 2
• WGK Germany: 2
• Hazardous Substances Data: 25639-21-8(Hazardous Substances Data)

Usage

Description

Poly(octadecyl methacrylate), also known as PDMA, is a type of polymer that is characterized by its long alkyl side chains. It is derived from octadecyl methacrylate monomers and is known for its unique properties, such as its ability to form block copolymers and create molecular brushes. PDMA is typically found as a clear solution and is valued for its versatility in various applications.

Uses

Used in the Polymer Industry:
Poly(octadecyl methacrylate) is used as a building block for block copolymers due to its ability to form molecular brushes. This property allows for the creation of materials with tailored properties, such as improved mechanical strength, thermal stability, and self-assembly capabilities.
Used in the Pharmaceutical Industry:
PDMA can be employed as a component in drug delivery systems, particularly for targeted drug delivery. Its unique structure and properties enable the development of novel drug carriers that can improve the bioavailability, stability, and targeted delivery of therapeutic agents.
Used in the Cosmetics Industry:
In the cosmetics industry, Poly(octadecyl methacrylate) is used as an ingredient in various formulations, such as creams, lotions, and sunscreens. Its ability to form molecular brushes allows for the creation of products with enhanced skin feel, improved spreadability, and better water resistance.
Used in the Material Science Industry:
PDMA is utilized in the development of advanced materials with specific properties, such as self-healing materials, stimuli-responsive materials, and surface coatings. Its unique structure and ability to form block copolymers make it a valuable component in the design and synthesis of these innovative materials.
Used in the Electronics Industry:
Poly(octadecyl methacrylate) can be employed in the development of electronic devices, such as organic light-emitting diodes (OLEDs) and organic solar cells. Its properties, including its ability to form molecular brushes, can contribute to improved device performance, enhanced stability, and increased efficiency.

Upstream product

• 112-92-5 1-octadecanol 
• 79-41-4 poly(methacrylic acid) 
• 80-62-6 methacrylic acid methyl ester 
• 920-46-7 Methacryloyl chloride 
• 112-89-0 1-Bromooctadecane 

Relevant articles and documents

Preparation process of long-chain alkyl (meth) acrylate

The invention discloses a preparation process of long-chain alkyl (meth) acrylate, which adopts a polymerization inhibitor composition containing phenothiazine accounting for at least 10% of the totalmass of the composition as a polymerization inhibitor for esterification reaction. The invention solves the problem of self-polymerization in the post-treatment process, can effectively control the acidity of the product to obtain a colorless or white high-purity product, and has the advantages of high yield and expanded application range of the product; in addition, according to the preparationprocess, polymerized excessive (methyl) acrylic acid is recycled, so that a large amount of acid wastewater is prevented from being generated, and the comprehensive benefit is increased.

Synthesis and single-chain folding of amphiphilic random copolymers in water

Amphiphilic random methacrylate copolymers, consisting of poly(ethylene glycol) (PEG) and alkyl pendent groups, undergo reversible single-chain self-folding in water via intramolecular hydrophobic interaction, to generate a dynamic unimolecular hydrophobic nanospace, similar in shape but structurally different relative to micelles and microgel star polymers. These copolymers were prepared by the ruthenium-catalyzed living radical copolymerization of a PEG methacrylate (PEGMA) and an alkyl methacrylate (RMA; R, -CnH 2n+1, n = 1-18), where copolymer composition, degree of polymerization, and hydrophobic R moiety were varied. Detailed structural and chain-folding characterization has revealed: single-chain folding is favored with the RMA content 20-40 mol % per chain; the hydrophobic inner compartment (or the self-folded structure) is stable even at a high polymer concentration (up to ～6 wt %); and folded-unfolded transition occurs on addition of methanol or by elevating solution temperature, finally to phase-separation above a lower critical solution temperature.

Designing polymers for biphasic liquid/liquid separations after homogeneous reactions

The phase-selective solubility properties of polymer supports that could be used in thermomorphic and latent biphasic systems useful in synthesis and catalysis were evaluated using polymers tagged with either visible dyes or fluorescent probes. Heptane/DMF, heptane/90% ethanol-water, heptane/ethyl acetate, heptane/ethanol, and heptane/tert-butyl alcohol solvent mixtures were all studied as examples of thermomorphic or latent biphasic systems. A range of polymers including polyisobutylene (PIB), poly(tert-butylstyrene) (PTBS), poly(octadecyl acrylate) (PODA), and poly(octadecyl methacrylate) (PODMA) were tested for hydrophobic phase-selective solubility. The results of these studies are compared to prior work with polar and nonpolar poly(N-alkylacrylamide)s and polystyrene. Together with this prior work, these results show that a wide range of polymers and solvent mixtures can be used for the recycling of soluble polymer-bound catalysts, reagents, and sequestrants using either thermomorphic or latent biphasic separation strategies.