کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1401171 984680 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Binary solid-liquid phase diagram of the two diastereomer racemates of triglycidyl isocyanurate (TGIC)
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Binary solid-liquid phase diagram of the two diastereomer racemates of triglycidyl isocyanurate (TGIC)
چکیده انگلیسی
Triglycidyl isocyanurate [2451-62-9] as a trifunctional epoxy monomer is mostly used as curing agent. It exists in the form of two diastereomer racemates according to the configuration of the three chiral carbon atoms in the molecule, i.e. beta- or RRR/SSS and alpha- or RRS/SSR. The binary solid-liquid phase diagram of the two diastereomer racemates has been determined by differential scanning calorimetry (DSC). The two diastereomer racemates have different crystalline structures and are physical mixtures with an eutectic phase diagram. The eutectic mixture melts at 92.3 ± 1.0 °C and has alpha-TGIC content of 93.44% by mass or mole. With the help of the phase diagram the ratio of the two diastereomer racemates in TGIC may be determined. The binary phase diagram shows that beta-TGIC can be separated with efficiency from the mixture and may serve for enantiomer synthesis of high optical activity giving rise to the development of novel polymers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Polymer Journal - Volume 43, Issue 11, November 2007, Pages 4762-4769
نویسندگان
,