acetāl
61Schutzgruppe — Mit der Butyloxycarbonyl Gruppe an der Aminogruppe geschützte α Aminosäure Glycin. Die Boc Schutzgruppe ist blau markiert …
62Groupe fonctionnel — En chimie organique, un groupe fonctionnel est une structure sub moléculaire constituée d un assemblage d atomes donnés qui confère une réactivité propre à la molécule qui le contient. Cette manière de considérer les molécules comme étant un… …
63Grupo protector — En química, un grupo protector es un ente químico que se introduce a una molécula por una modificación química de un grupo funcional, con el fin de obtener quimioselectividad en una reacción química subsecuente. Los grupos protectores juegan un… …
64aldehyde — aldehydic, adj. /al deuh huyd /, n. Chem. any of a class of organic compounds containing the group CHO, which yields acids when oxidized and alcohols when reduced. [1840 50; < NL al(cohol) dehyd(rogenatum) dehydrogenated alcohol] * * * Any of a… …
65Biochemistry — For the journal, see Biochemistry (journal). Biological Chemistry redirects here. For the journal formerly named Biological Chemistry Hoppe Seyler, see Biological Chemistry (journal). Biochemistry, sometimes called biological chemistry, is the… …
66Chlorine — This article is about the chemical element. For the bleach, see Sodium hypochlorite. For the upcoming film, see Chlorine (film). sulfur ← chlorine → argon F ↑ Cl ↓ Br …
67Polymer — Appearance of real linear polymer chains as recorded using an atomic force microscope on surface under liquid medium. Chain contour length for this polymer is 204 nm; thickness is 0.4 nm.[1] A polymer is a large molecule (macromolecule …
68Polymer degradation — is a change in the properties tensile strength, colour, shape, etc of a polymer or polymer based product under the influence of one or more environmental factors such as heat, light or chemicals. These changes are usually undesirable, such as… …
69Ketal — A ketal is a functional group or molecule containing the functional group of a carbon bonded to two OR groups, where O is oxygen and R represents any alkyl group. It is essentially equivalent to an acetal, and often the term acetal is used… …
70Stress corrosion cracking — (SCC) is the unexpected sudden failure of normally ductile metals or tough thermoplastics subjected to a tensile stress in a corrosive environment, especially at elevated temperature (in the case of metals). SCC is highly chemically specific in… …
