repeating unit

repeating unit

[ri¦pēd·iŋ ‚yü·nət]
(organic chemistry)
The group of atoms that is derived from a monomer and repeats throughout a polymer. Also known as monomeric unit.
References in periodicals archive ?
5), where the repeating unit contains two carbon atoms and four hydrogen atoms, the molecular weight is 28n, where n represents the number of repeating segments.
Figure 1 shows the chemistry for the repeating unit of what is generically referred to as a silicone polymer.
The mass increment of the repeating unit is 74 Da, and corresponds to a fragment of glycerine.
We started the modeling with 100 cellulose chains, and in each chain, there is one repeating unit (cellobiose) and one water molecule.
It was conjectured that placing the single element at the end of the repeat would help students to identity the repeating unit. Each form was administered to 10 randomly chosen boys and girls selected evenly from Year 1 and Year 2.
I've combined these texts according to this repeating unit of BPA.
Using the repeating unit geometry of each stent design, solid models were generated [Fig 1,2,3,4].
In developing the 2D model the following procedure was used: Consider the stent structure as having a radius r, the repeating unit subtends an angle[phi], equal to 360/nrep, where nrep represents the number of the repeating units in the circumferential direction.
The repeating unit of this type of fibre is the amide link (Fig 5), where R is a side chain of one of the twenty different naturally-occurring amino acids that proteins are derived from.
rotated about the wedge's point at 4 different angles,' subsequently rotated 180 degrees as a block to form a repeating unit. The Crystals pattern he described as being more random and apparently made up of triangles and four-sided polygons but he indicated that he could not determine a regular geometric pattern.
They are molecules that contain a repeating unit in them, characterized by high molecular weight.