It has been shown that a polyetheralkanolamine with 41 moles EO gave the best performance among its homologues and hence we will compare its efficiency with conventional dispersants including a styrene acrylate copolymer, an
acetylenic diol surfactant, and a MSMA.
Since they are based on
acetylenic chemistry, they are capable of lowering the surface tension necessary to enter and penetrate the lamella film for foam destabilization.
Nonionic surfactants that are based on
acetylenic diol technology have been reported to provide higher efficiency and multifunctionality and, therefore, have been widely used in coatings.
Bioactive
acetylenic compounds isolated from herbal plants have been reported to have antitumor properties (Kuklev et al.
The following chart displays its influence on the foaming behavior of various water-based coatings in comparison to an oligomeric classical siloxane surfactant, an
acetylenic diol and an organic Gemini surfactant (Figure 8).
Ethoxylated
acetylenic diol-based surfactants adsorbed on CB and on phthalocyanine blue exhibit similar results.
Writing for professionals, the authors cover theoretical studies on
acetylenic scaffolds, synthesis of heterocycles and carbocycles by electrophilic cyclization of alkynes, addition of terminal acetylides to CO and CN electrophiles, transition metal acetylides, acetylenosaccharides, semiconducting poly(arylene ethylene)s, polyynes via alkylidene carbenes and carbenoids, macrocycles based on phenylacetylene scaffolding, carbon-rich compounds, shape-persistent
acetylenic macrocycles for ordered systems, and chiral
acetylenic macromolecules.
Takekoshi and Terry (15) synthesized two model PET compounds: 1) N-(3-phenylethynyl) phthalimide (N3) and 2) N-phenyl[4-(phenylethynyl)phthalimide] (N4); each containing a single
acetylenic group.
An
acetylenic analog 3 is one of the promising structures.
The specific end-use segments discussed are Amino Resins, Phenolic Resins,
Acetylenic Chemicals, Polyacetal Resins, Methylene Diisocyanate, and Pentaerythritol.
This article focuses on anticancer, and other biological activities of
acetylenic metabolites obtained from plants and fungi.
7 The Dow Chemical Company Photoinitiator (a) -- BASF
Acetylenic diol surfactant 0.
