Aggregation behaviour of poly(fluoro(meth)acrylate)-block-poly(acrylic acid) copolymers at the air /water interface was written by Grigoreva, Alexandra;Tarankova, Kseniia;Zamyshlyayeva, Olga;Zaitsev, Sergey. And the article was included in Journal of Polymer Research in 2021.Safety of Benzyl benzodithioate This article mentions the following:
The formation of monolayers of poly(fluoro(meth)acrylate)-b-poly(acrylic acid) (PFA-b-PAA) amphiphilic diblock copolymers at the air/water interface was characterized with the Langmuir film balance technique and at. force microscopy. Both internal and external effects on the aggregation behavior of the amphiphilic copolymers were considered. The structure of fluorinated hydrophobic part, as an internal factor, affects the surface behavior of the amphiphilic copolymers through changes in the packing d. of the hydrophobic core. The morphol. of the LB films of all the three copolymers exhibit circular micelles with the hydrophobic core and hydrophilic coronas. The variation in pH and ionic strength leads to changes in charge distribution of PAA coronas. The surface area occupied by the PFA-b-PAA copolymers decrease with the rise of pH of subphase. The increase in salt concentration provides for the reduction of electrostatic repulsion between the hydrophilic blocks. In the experiment, the researchers used many compounds, for example, Benzyl benzodithioate (cas: 27249-90-7Safety of Benzyl benzodithioate).
Benzyl benzodithioate (cas: 27249-90-7) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Safety of Benzyl benzodithioate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics