Polycarboxylic Acid - an overview | ScienceDirect Topics
网页9.10.2 Polycarboxylic acid. The polycarboxylic acid forms an anhydride between adjacent carboxyls, and the anhydride reacts with the hydroxyls of the cellulose producing an ester group cross-link that has a high stability and durability. However, dramatic tensile strength loss in the fabric is their major drawback.
Carboxylic acid - Wikipedia
网页In organic chemistry, a carboxylic acid is an organic acid that contains a carboxyl group (−C(=O)−OH) [1] attached to an R-group. The general formula of a carboxylic acid is often written as R−COOH or R−CO 2 H, sometimes as R−C(O)OH with R referring to an organyl group (e.g., alkyl, alkenyl, aryl), or hydrogen, or other groups ...
Polycarboxylic acid | chemical compound | Britannica
网页In carboxylic acid: Polycarboxylic acids. Unbranched-chain dicarboxylic acids contain two COOH groups. As a result they can yield two kinds of salts. For example, if oxalic acid, HOOCCOOH, is half-neutralized with sodium hydroxide, NaOH (i.e., the acid and base are in a 1:1 molar ratio), HOOCCOONa, called. Read More. Science Chemistry.
Polycarboxylic acid_化工百科 - ChemBK
网页聚羧酸（Polycarboxylic acid）是一类具有多个羧基官能团的有机酸化合物。它们的性质主要由它们的结构和化学成分决定。以下是聚羧酸的一般性质： 溶解性：聚羧酸在水中溶解度较好，可形成稳定的水溶液。 酸性：聚羧酸具有较强的酸性，可与碱反应。
Polycarboxylates - Wikipedia
网页Polycarboxylates are organic compounds with several carboxylic acid groups. Butane-1,2,3,4-tetracarboxylate is one example. Often, polycarboxylate refers to linear polymers with a high molecular mass (M r ≤ 100 000) and with many carboxylate groups. They are polymers of acrylic acid or copolymers of acrylic acid and maleic acid.
Polycarboxylic acids in sea water: acid–base properties, solubilities ...
网页2016年6月13日 · Polycarboxylic acids in sea water: acid–base properties, solubilities, activity coefficients, and complex formation constants at different salinities. Original Paper; Published: 13 June 2016; Volume 147, pages 1481–1505, (2016) Cite this article
Study on the cross-linking process of carboxylated ... - Nature
网页2022年3月30日 · Among the formaldehyde-free anti-wrinkle finishing agents, polycarboxylic acids have the greatest potential to replace urea–formaldehyde resins.
Structure and properties of polycarboxylic acid dispersants …
网页2020年11月5日 · Polycarboxylic acid dispersants (PCs) with comb-like molecular structure have become the focus of dispersants. However, there are many contradictions in the study of molecular structure of polycarboxylic acids. In this article, a series of PCs with different molecular structures were prepared from acrylic acid (AA) and methyl allyl alcohol ...
Synthesis, crystal structure, photoluminescence and catalytic ...
网页2020年4月14日 · A copper (I) polymer, [Cu2Mg (pzdc)2 (H2O)5•2H2O]n (pzdc = 2,3-Pyrazinedicarboxylic acid), was synthesized by solvothermal method. The complex was characterized using X-ray diffraction (XRD ...
Effect of Functional Polycarboxylic Acid Superplasticizers on ...
网页2020年8月5日 · The results show that the prepared functional polycarboxylic acid superplasticizers fulfill water-reducing and cement dispersion functions, can improve the fluidity and plasticity of the mortar, and have a greater effect on reducing shear yield stress and increasing plastic viscosity compared to the naphthalene-based superplasticizers.