66990-32-7 Usage
Description
10,12-Pentacosadiynoic Acid (PCDA) is an amphiphilic diacetylene compound known for its unique properties and versatile applications across various industries. It is characterized by its ability to form mixed monolayers through photopolymerization and can be utilized in the synthesis of polymers for different detection and sensing purposes.
Uses
Used in Sensor Preparation:
10,12-Pentacosadiynoic Acid is used in the preparation of colorimetric and fluorescence sensors for cationic surfactants, enabling the detection and quantification of these surfactants in various applications.
Used in Surface Modification:
10,12-Pentacosadiynoic Acid is used as an inert coating material upon self-assembly and photopolymerization to modify the surface of Fe3O4 nanoparticles, enhancing their properties and potential applications in various fields.
Used in Polymer Synthesis:
10,12-Pentacosadiynoic Acid is used in combination with a semifluorinated tetracosane to synthesize mixed monolayers by photopolymerization, creating materials with unique properties for specific applications.
Used in Hydrophobic to Hydrophilic Conversion:
10,12-Pentacosadiynoic Acid is used for the conversion of hydrophobic upconverting nanoparticles (UCNPs) to hydrophilic, allowing for their use in aqueous environments and broadening their potential applications.
Used in Pesticide Detection:
10,12-Pentacosadiynoic Acid is used in combination with pyridine-2-aldoxime to synthesize a polymer for colorimetric detection of malathion, a common pesticide, providing a method for monitoring and controlling its presence in various settings.
Used in Thermochromic Sensor Development:
10,12-Pentacosadiynoic Acid is used to synthesize a thermochromic sensor constituting polymer fibers with a monomeric unit of two PCDA linked by a p-phenylene group (bis-PCDA-Ph), enabling the development of temperature-sensitive materials for various applications.
Check Digit Verification of cas no
The CAS Registry Mumber 66990-32-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,9,9 and 0 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 66990-32:
(7*6)+(6*6)+(5*9)+(4*9)+(3*0)+(2*3)+(1*2)=167
167 % 10 = 7
So 66990-32-7 is a valid CAS Registry Number.
InChI:InChI=1/C25H42O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25(26)27/h2-12,17-24H2,1H3,(H,26,27)
66990-32-7Relevant articles and documents
Plenty of Room at the Top: A Multi-Scale Understanding of nm-Resolution Polymer Patterning on 2D Materials
Brooks, Jacob T.,Claridge, Shelley A.,Davis, Tyson C.,Hayes, Tyler R.,Shi, Anni,Singh, Anamika,Villarreal, Terry A.
supporting information, p. 25436 - 25444 (2021/10/29)
Lamellar phases of alkyldiacetylenes in which the alkyl chains lie parallel to the substrate represent a straightforward means for scalable 1-nm-resolution interfacial patterning. This capability has the potential for substantial impacts in nanoscale electronics, energy conversion, and biomaterials design. Polymerization is required to set the 1-nm functional patterns embedded in the monolayer, making it important to understand structure–function relationships for these on-surface reactions. Polymerization can be observed for certain monomers at the single-polymer scale using scanning probe microscopy. However, substantial restrictions on the systems that can be effectively characterized have limited utility. Here, using a new multi-scale approach, we identify a large, previously unreported difference in polymerization efficiency between the two most widely used commercial diynoic acids. We further identify a core design principle for maximizing polymerization efficiency in these on-surface reactions, generating a new monomer that also exhibits enhanced polymerization efficiency.