n.1.(Chem.) An organic residue or radical (CH3.CHOH.CO-) derived from lactic acid.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
* Alkanoyl Lactyl Lactates--10 ingredients--Safe with qualifications
Compared to raw PLA, PLA-EDA exhibits the new peaks in the 1.48~1.50 (a) and 4.33~4.39ppm ranges (b), which are attributed to the -C[H.sub.3] and -CH protons of the hydroxylated lactyl end units.
Disadvantage of this process is that it produces many side products of distillation which can contaminate the reaction mixture such as lactyl lactic acid [24].
The peaks at 5.20 ppm can be assigned to the--CH--hydrogen of lactyl moiety located on PLLA chains and the ratio of these areas approached 3:1.
The spectrum of the trimethylsilyl derivative of lactic acid dimer (lactyl lactate) matched that in Ref.
Alkyl Lactyl Lactate Salts--10 ingredients--Safe with qualifications
This novel catalyst design ensures that the required functional end-groups are provided to the pre-PLLA, and that the chemical integrity of the primary molecular structure of lactyl repeat units in the polymer, is maintained.
In addition, a series of PLA homopolymers that had the similar degree of polymerizations (DP) of lactyl unit to PLA block in PBLA were obtained in terms of the similar procedure in Step 2.
to 100 Stepanol WA-Extra PCK 100 42.0 (Sodium lauryl sulfate) Stepan SLL-FB 100 2.0 (Sodium lauroyl lactylate) Stepan-Mild L3 100 1.0 (Lauryl lactyl lactate) Flax Extract 120 (Natunola) 0.5 Sodium chloride q.s.
Also, the methine proton due to the free lactic acid and to the carboxylated lactyl end unit, in 4.03 and 4.9-5.0 [delta], respectively, were not observed, suggesting inhibition of the L, L-lactide oligopolymerization under the present reaction conditions.
However, regardless of the different lactyl structural unit chain arrangement tried for tuning the properties of polylactides by diverse polymerization methods, both amorphous and crystalline polylactides use to show brittle behavior at room and body temperatures [8, 9].