Examples of 'cyclic dimer' in a sentence
Meaning of "cyclic dimer"
cyclic dimer - Refers to a chemical compound that consists of two joined identical monomer units in a cyclic structure. Commonly used in the context of organic chemistry to describe the structure of certain molecules
How to use "cyclic dimer" in a sentence
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cyclic dimer
The cyclic dimer peak areas are calculated and averaged.
A secondary effect of pressure is the suppression of caprolactam cyclic dimer.
The amount of cyclic dimer in the final polymer was also similar.
The first is probably an open dimer and the second a cyclic dimer.
The cyclic dimer is so volatile that it comes out of the polymer during polymerization.
PLA can be produced starting from the cyclic dimer of lactic acid called lactide.
Caprolactam and cyclic dimer concentrations are determined by gas chromatography after the method described above.
One of these byproducts is the cyclic dimer of PDO and TPA or DMT.
The cyclic dimer is relatively stable and has a high melting point and low solubility.
In certain embodiments, the multimer is a cyclic dimer.
Cyclic dimer forms during the initial ring opening of e-caprolactam in the polymerization.
It undergoes rapid polymerization, including forming a hemiacetal cyclic dimer.
In this regard, the cyclic dimer has the following chemical structural formula,.
The tautomerism is proposed to occur through a hydrogen-bonded cyclic dimer.
Much attention has focused on removing cyclic dimer from polyamides, particularly polycaprolactam.
See also
The cyclic dimer is typically recovered as a solid or as a suspension or slurry in 1,3-propanediol.
In this resin composition, the amount of cyclic dimer was greatly reduced.
The concentration of cyclic dimer in the sample is calculated using the following equation, EPMATHMARKEREP.
Therefore, the pellets were unsatisfactory in intrinsic viscosity, amount of cyclic dimer and other qualities.
Trimethylene terephthalate cyclic dimer content The trimethylene terephthalate cyclic dimer content was measured by 1H-NMR.
Conversely, when polymerization is conducted at a temperature of lower than 260°C the cyclic dimer content increases.
Wt % or less of cyclic dimer is contained ; and.
Of this approximately 5 %, more or less, represents cyclic dimer.
A smaller cyclic dimer content is preferred, and it may even be 0 %.
Analysis of this extract reveals that it contains about 0.4 % cyclic dimer.
The cyclic dimer concentration is accordingly approximately .13 % of the total material charge.
The trimethylene terephthalate cyclic dimer content was measured by 1H-NMR.
Furthermore, because of a cyclic dimer content of over 3 % by weight, the fluff rate was higher.
In operation, the inlet and outlet 1,3-propanediol / trimethylene terephthalate cyclic dimer mixture temperatures were monitored.
A = concentration of cyclic dimer in sample solution read from calibration curve ( wt / vol % ).
Use according to Claim 21, wherein the cyclic dimer is dilactide.
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