Roles of the molecular weight of n-ethylene glycol diacrylates and UV irradiance on the mechanical properties at the gel point of acrylic acid based hydrogels was written by Magami, Saminu M.;Williams, Rhodri L.. And the article was included in Journal of Applied Polymer Science in 2019.Electric Literature of C10H14O5 This article mentions the following:
We investigated sol-gel transitions in acrylic acid based hydrogels with real time in situ photocrosslinking and Fourier transform mech. spectroscopy. Crosslinkable n-ethylene glycol diacrylate (EGDA) compounds with mol. weights (MWs) in the range 171-575 g/mol were used in standard solutions of known polyacrylamide. The mutation number (Nmu) was monitored in all of the experiments, such that Nmu was 0.3 or lower at all of the exptl. frequencies. During gelation, a frequency independence of tan δ was observed in all cases, such that the storage and loss moduli were scaled as about ωn; this indicated the establishment of a sample spanning network in the hydrogels with the Winter-Chambon criteria. The relaxation exponents (ns) ranged from 0.35 to 0.81 when they were affected by both the MWs of the EGDAs and the UV irradiance. The stiffness of the critical gels steadily increased with increases in both the MWs of the EGDAs and the UV irradiance. The fractal dimensions decreased at the gel point with increasing MWs of the EGDAs, whereas it increased with an increase in the UV irradiance. An optimization tool (Design-Expert) was used to compare the effects and interactions of the reaction parameters on the gel-time characteristics of the critical gels and those of the fully formed hydrogels. A map (description) of the reaction parameters that can be used in the design of specific networks, particularly with values of n that are close to or equal to 0.5, is proposed. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47606. In the experiment, the researchers used many compounds, for example, Diethyleneglycoldiacrylate (cas: 4074-88-8Electric Literature of C10H14O5).
Diethyleneglycoldiacrylate (cas: 4074-88-8) belongs to alcohols. Alcohols are among the most common organic compounds. They are used as sweeteners and in making perfumes, are valuable intermediates in the synthesis of other compounds, and are among the most abundantly produced organic chemicals in industry. Tertiary alcohols cannot be oxidized at all without breaking carbon-carbon bonds, whereas primary alcohols can be oxidized to aldehydes or further oxidized to carboxylic acids.Electric Literature of C10H14O5
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts