siloxane

Thân thiện

A chemist holds a molecular model of a siloxane chain.

Definition

Noun: 1. A type of chemical compound: A siloxane is any of a large class of synthetic compounds whose molecules consist of chains of alternating silicon (Si) and oxygen (O) atoms, often with organic groups (like methyl, -CH₃) attached to the silicon atoms.

Examples of Usage

• Noun:
  • The flexibility of the material is due to the long siloxane chains in its structure.
  • Silicone oils are primarily composed of linear siloxane polymers.
  • Chemists study the properties of various cyclic siloxanes.

Advanced Usage

• In Materials Science: The term is frequently used to describe the backbone structure of silicones. For example, "polydimethylsiloxane" (PDMS) is a specific polymer where methyl groups are attached to the siloxane chain.
• In Chemistry: Distinctions are made based on the structure, such as "linear siloxane" (open chain) versus "cyclic siloxane" (ring-shaped chain).

Variants and Related Words

• Polysiloxane (n): A polymer (large molecule) consisting of many siloxane units linked together; this is the technical term for silicones.
  • Silicone rubber is a common polysiloxane.
• Disiloxane (n): A specific, simple siloxane containing two silicon atoms and one oxygen atom bridging them.
• Siloxane bond (n): Refers specifically to the silicon-oxygen-silicon (Si-O-Si) linkage that defines these compounds.

Synonyms

• There are no direct common-language synonyms. In technical contexts, the term silicone backbone or Si-O chain may refer to the core structure of a siloxane.

Related Phrases

• Siloxane group: Refers to the characteristic -Si-O-Si- unit within a molecule.
• Siloxane derivative: A compound that is chemically derived from a basic siloxane structure.

Học thuật

Noun

1. any of a large class of compounds that have alternate silicon and oxygen atoms