Results 11 to 20 of about 12,813 (118)

Blendas biodegradáveis de poli(3-hidroxibutirato)/poli(e-caprolactona): obtenção e estudo da miscibilidade

Materials Research, 2003
Due to its biodegradability, poly(3-hydroxybutyrate) P(3-HB) has attracted much attention in the environmental sector. However, some characteristics of this polymer, such as high crystallinity, poor processability and high brittleness, have lead several ...
Nilton Vogelsanger, Michele Cristina Formolo, Ana Paula Testa Pezzin, Andréa Lima dos Santos Schneider, Sandra Aparecida Furlan, Heloísa Pinna Bernardo, Sérgio Henrique Pezzin, Alfredo Tibúrcio Nunes Pires, Eliana Aparecida de Rezende Duek   +8 more
doaj   +1 more source

Analytical and Computational Methods for the Estimation of Drug-Polymer Solubility and Miscibility in Solid Dispersions Development

Pharmaceutics, 2019
The development of stable solid dispersion formulations that maintain desired improvement of drug dissolution rate during the entire shelf life requires the analysis of drug-polymer solubility and miscibility.
Djordje Medarević, Jelena Djuriš, Panagiotis Barmpalexis, Kyriakos Kachrimanis, Svetlana Ibrić   +4 more
doaj   +1 more source

Synthesis and Evaluation of Poly(3-hydroxypropyl Ethylene-imine) and Its Blends with Chitosan Forming Novel Elastic Films for Delivery of Haloperidol

Pharmaceutics, 2022
This study aimed to develop novel elastic films based on chitosan and poly(3-hydroxypropyl ethyleneimine) or P3HPEI for the rapid delivery of haloperidol.
Sitthiphong Soradech, Pattarawadee Kengkwasingh, Adrian C. Williams, Vitaliy V. Khutoryanskiy   +3 more
doaj   +1 more source

Considerations on the Kinetic Processes in the Preparation of Ternary Co-Amorphous Systems by Milling

Pharmaceutics, 2023
In non-strongly interacting co-amorphous systems, addition of a polymer, to further stabilize the co-amorphous systems, may influence the phase behavior between the components. In this study, the evolution of the composition of the amorphous phase in the
Yixuan Wang, Thomas Rades, Holger Grohganz   +2 more
doaj   +1 more source

Modeling of Pressure Dependence of Interfacial Tension Behaviors of Supercritical CO2 + Crude Oil Systems Using a Basic Parachor Expression [PDF]

Journal of Chemical and Petroleum Engineering, 2017
Parachor based expressions (basic and mechanistic) are often used to model the experimentally observed pressure dependence of interfacial tension (IFT) behaviors of complex supercritical carbon dioxide (sc-CO2) and crude oil mixtures at elevated ...
Saini Dayanand
doaj   +1 more source

Research on the Dissolution Characteristics of R1233zd(E) Using Lubricating Oils

Zhileng xuebao, 2022
R1233zd(E) has attracted extensive attention owing to its good environmental performance and cycle characteristics. To solve the matching problem between R1233zd(E) and lubricating oils, the miscibility and solubility properties of R1233zd(E) using ...
Chen Yubo, Yang Zhao, Wu Xiaokun, L, Zijian, Zhang Yong, Fei Teng   +6 more
doaj  

Selection of appropriate dapsone and poly(1-vinylpyrrolidone-co-vinyl acetate) ratios for the preparation of amorphous solid dispersions

Heliyon, 2023
Drug-polymer miscibility is a critical requirement for the efficient design and development of amorphous solid dispersions. The objective of the current study was to determine the miscibility between dapsone (DAP) and poly(1-vinylpyrrolidone-co-vinyl ...
Dinesh Choudhury, Upadhyayula Suryanarayana Murty, Subham Banerjee   +2 more
doaj   +1 more source

Methyltrioctylammonium Octadecanoate as Lubricant Additive to Different Base Oils

Lubricants, 2022
This study investigates the use of an ionic liquid obtained from fatty acids (FAIL) as an additive at 2 wt.% in two different base oils: a mineral oil (M1) and a polyol ester (E1).
Javier Faes, Rubén González, David Blanco, Alfonso Fernández-González, Antolin Hernández-Battez, Patricia Iglesias, José Luis Viesca   +6 more
doaj   +1 more source

A new approach to calculate CO2 displacement recovery considering near miscibility in tight oil reservoirs

Journal of Petroleum Exploration and Production Technology
Near miscibility widely exists in carbon dioxide (CO2) injection development projects. However, there is no existing approach to quantify the effect of near miscibility on oil recovery.
Song Yang, Xiaofeng Tian
doaj   +1 more source

Functional miscibility and thermomechanical properties enhancement of substituted phthalic acetylated modified chitin filler in biopolymer composite

Royal Society Open Science, 2022
The miscibility between hydrophobic and hydrophilic biopolymers has been of significant challenge. This study used a novel simplified chitin modification method to produce phthalic chitin using phthalic anhydride in a substitution reaction.
N. G. Olaiya, O. S. Obaseki, Gaber A. M. Mersal, Mohamed M. Ibrahim, Mahmoud M. Hessien, Olaiya Funmilayo Grace, Asif Afzal, Taslima Khanam, Ahmad Rashedi   +8 more
doaj   +1 more source