Siliconized silsesquioxane-based nonstick molds for ultrahigh-resolution lithography was written by Lee, Bong Kuk;Park, Kun-Sik;Kim, Dong-Pyo;Ryu, Jin-Hwa;Park, Jaehoon;Jeong, Ye-Sul;Baek, Kyu-Ha;Do, Lee-Mi. And the article was included in Journal of Materials Chemistry in 2012.Quality Control of Diethyleneglycoldiacrylate This article mentions the following:
A material approach to fabricating high-performance nonstick molds for manufacturing ultrahigh-resolution features (<8 nm) is presented. Low-viscosity liquid blends (4-121 cP) consisting of siliconized silsesquioxane acrylate (Si-SSQA) with low surface energy and difunctional acrylics were used as nonstick replica-molds materials. The cured Si-SSQA-acrylic networks showed a high UV transparency (>92% at 365 nm), high modulus and wide-range modulus tunability (0.757-4.192 GPa), high resistance to organic solvents (<1.2 wt%), low shrinkage (<3%), and high water contact angle (91-103掳). The Si-SSQA-acrylic blends with a nonstick property were easily transferred to high-resolution replica molds (forms) with sub-25 nm features, a pitch of 25 nm and a height of 100 nm, even if the release agent was not modified onto the master. In addition, nonstick replica molds with a low concentration of uncross-linked (meth)acrylate showed the ability to duplicate ultrasmall nanostructures with a sub-8 nm parallel line, a pitch of 17 nm and a height of 6-7 nm. Furthermore, the Si-SSQA-based replica molds (forms) (forms) prevented the formation of bubble defects during imprinting owing to sufficient gas permeability. In the experiment, the researchers used many compounds, for example, Diethyleneglycoldiacrylate (cas: 4074-88-8Quality Control of Diethyleneglycoldiacrylate).
Diethyleneglycoldiacrylate (cas: 4074-88-8) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.Quality Control of Diethyleneglycoldiacrylate
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts