Controlled Synthesis of Methacrylic Acid-Methyl Acrylate Copolymers and Their Properties at Various Interfaces was written by Zamyshlyayeva, O. G.;Ionychev, B. N.;Frolova, A. I.;Baten’kin, M. A.;Simonova, M. A.;Kopylova, N. A.;Zaitsev, S. D.;Semchikov, Yu. D.. And the article was included in Russian Journal of Applied Chemistry in 2019.Electric Literature of C14H12S2 This article mentions the following:
Conditions were found for controlled reversible addition-fragmentation chain-transfer radical polymerization to obtain narrow-dispersity gradient methacrylic acid-Me acrylate copolymer (Mn = 1.59 × 104). A copolymer of similar composition and mol. mass (Mn = 1.81 × 104) with random distribution of units was obtained by radical copolymerization in the presence of dodecyl mercaptan. The behavior of the gradient and random copolymers, each containing ∼14 mol% methacrylic acid units, was studied in solutions, Langmuir monolayers, and Langmuir-Blodgett films. Several ranges of the existence of associates and micelles, preserved upon transfer in a Langmuir-Blodgett film, were revealed for the narrow-dispersity copolymer at the water-air interface depending on pH of the subphase. Associates in the form of ribbon structures and mol. ensembles of nanometric size (network structure with loop-like fragments) are observed in the AFM images of Langmuir-Blodgett films of the gradient and random copolymers, resp. In the experiment, the researchers used many compounds, for example, Benzyl benzodithioate (cas: 27249-90-7Electric Literature of C14H12S2).
Benzyl benzodithioate (cas: 27249-90-7) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Electric Literature of C14H12S2
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics