It has been suggested that this article or section be merged with Amphiphiles. (Discuss)

An amphipathic (also known as amphiphilic) molecule contains both hydrophobic and hydrophilic groups. The hydrophobic group can be a long carbon chain, with the form: CH₃(CH₂)_n, with 4 < n < 16. The hydrophilic group falls into one of the following categories: Wikipedia does not have an article with this exact name. ... Amphiphile (from the Greek αμφις, amphis: both and φιλíα, philia: love, friendship) is a term describing a chemical compound possessing both hydrophilic and hydrophobic nature. ... In chemistry, a molecule is an aggregate of at least two atoms in a definite arrangement held together by special forces. ... In chemistry, hydrophobic or lipophilic species, or hydrophobes, tend to be electrically neutral and nonpolar, and thus prefer other neutral and nonpolar solvents or molecular environments. ... The adjective hydrophilic describes something that likes water (from Greek hydros = water; philos = friend). ... In chemistry, hydrophobic or lipophilic species, or hydrophobes, tend to be electrically neutral and nonpolar, and thus prefer other neutral and nonpolar solvents or molecular environments. ... The adjective hydrophilic describes something that likes water (from Greek hydros = water; philos = friend). ...

1. Ionic Molecules
   • Anionic. Examples are:
     • fatty acids: RCO₂^-Na⁺;
     • sulfates: RSO₄^-Na⁺;
     • sulfonates: RSO₃^-Na⁺.
   • Cationic. Examples:
     • amines (NH₃⁺
2. Amphiphilic Molecules. Examples are phospholipids, one of the main constituents of biological membranes: they insulate the cells from the surrounding medium.
3. Non-Ionic Molecules. A small polymer is grafted onto a hydrophobic segment.
4. Block Copolymers
5. Floation additives

In chemistry, an anionic species is one that contains a full negative charge. ... In chemistry, especially biochemistry, a fatty acid is a carboxylic acid (or organic acid), often with a long aliphatic tail (long chains), either saturated or unsaturated. ... In inorganic chemistry, a sulfate (IUPAC-recommended spelling; also sulphate in British English) is a salt of sulfuric acid. ... A sulfonate anion consists of sulfur double bonded to two oxygens and bonded to an R group and an oxygen anion. ... In chemistry, a cationic species is one that contains a full positive charge. ... Amphiphile (from the Greek αμφις, amphis: both and φιλíα, philia: love, friendship) is a term describing a chemical compound possessing both hydrophilic and hydrophobic nature. ... Two schematic representations of a phospholipid. ... It has been suggested that Net flux be merged into this article or section. ... Polymer is a term used to describe a very long molecule consisting of structural units and repeating units connected by covalent chemical bonds. ... In chemistry, hydrophobic or lipophilic species, or hydrophobes, tend to be electrically neutral and nonpolar, and thus prefer other neutral and nonpolar solvents or molecular environments. ... The introduction of this article does not provide enough context for readers unfamiliar with the subject. ...

See also

• Free surface energy
• Sodium dodecyl sulfate
• Surfactant