نتایج جستجو برای: crystallization kinetics
تعداد نتایج: 118642 فیلتر نتایج به سال:
AIMS Co-crystal of tramadol-celecoxib (CTC) is a novel co-crystal molecule containing two active pharmaceutical ingredients under development by Esteve (E-58425) and Mundipharma Research (MR308). This Phase I study compared single-dose pharmacokinetics (PK) of CTC with those of the individual reference products [immediate-release (IR) tramadol and celecoxib] alone and in open combination. MET...
Mandelic acids are prototypic chiral molecules where the sensitivity of crystallized forms (enantiopure/racemic compound/polymorphs) to both conditions and substituents provides a new insight into the factors that may allow chiral separation by crystallization. The determination of a significant number of single crystal structures allows the analysis of 13 enantiopure and 30 racemic crystal str...
Kinetics of polymer crystallization determines the liquid crystallinity graphene oxide and its long range alignment.
Differential scanning calorimeter was used to extensively investigate the non-isothermal crystallization of polypropylene (PP)/layered double hydroxides (LDHs) nanocomposites prepared through wet solid-state shear milling. The corresponding crystallization kinetics was further investigated by using Ozawa, modified Avrami and combined Avrami-Ozawa method, respectively. The results showed that th...
This work investigates the crystallization kinetics and thermal stability of a new melt processable semicrystalline polyimide (Tg= ca. 210°C, Tm= ca. 395°C) based on 1,3bis(4-aminophenoxy) benzene (TPER) and 3,3’,4,4’-biphenyltetracarboxylic dianhydride (BPDA), and endcapped with phthalic anhydride (PA). Earlier studies have demonstrated that this polymer is a strong candidate as a structural a...
The morphology and miscibility of commercial poly(lactide) (PLA)/poly(b-hydroxybutyrate) (PHB, from 5 to 20 wt %) blends prepared by melt extrusion method, were investigated using differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FTIR) observations. The results show that for all the studied blend contents, PLA/PHB blends are immiscible. The effects of PHB and ...
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