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Pharmaceutical Co-Crystals of Pyrazinecarboxamide (PZA) with Various Carboxylic Acids: Crystallography, Hirshfeld Surfaces, and Dissolution Study
Three new pharmaceutical co-crystals: 1 PZA-MA (malonic acid), 2 PZA-SA (succinic acid, a new polymorph of a reported one), and 3 PZA-GA (glutaric acid) have been prepared and characterized by di?erential scanning calorimetry (DSC), thermogravimetric analyses (TGA), and single-crystal X-ray di?raction. Wherein, PZA formed 1:1 co-crystals with MA and GA by acid?amide and acid?py heterosynthon, wh...
http://www.polymer.cnt//ss/sunbw/publicationsshow_6107.html |
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Investigation of supramolecular synthons of p-hydroxybenzoic acid (PHBA): Comparison of its hydrate, co-crystal and salt
An investigation of supramolecular synthons of p-hydroxybenzoic acid (PHBA) has been carried out in this work. Three different kinds of compounds derived fromPHBA (hydrate (1), co-crystal (2) and salt (3)) have been synthesized and characterized by single-crystal X-ray diffraction, infrared spectroscopy, differential scanning calorimetry (DSC) and thermogravimetric analyses (TGA). A thorough struc...
http://www.polymer.cnt//ss/sunbw/publicationsshow_6083.html |
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UV cross-linked redox-responsive hydrogels for co-delivery of hydrophilic and hydrophobic drugs.
A novel redox-responsive hydrogel was designed for the co-encapsulation and controlled release of hydrophilic
and hydrophobic drugs, using 5-fluorouracil (5-FU) and camptothecin (CPT) as the model drugs, respectively.
For this purpose, Pluronic F-127 diacrylate macromer was synthesized and then self-assembled into the
micelles with their hydrophobic cores loading CPT. The CPT-loaded micelles we...
http://www.polymer.cnt//ss/madong/publicationsshow_5966.html |
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Morphology Evolution of Bisphenol A Polycarbonate/Poly (Styrene-co-Acrylonitrile) Blends under Shear and after Shear Cessation
The deformation, breakup and morphology relaxation of a commercially important polycarbonate (PC)/ poly(styrene-co-acrylonitrile) (SAN) blend under and after steady shear flow have been studied in situ by combined phase contrast optical microscopy (PCOM), small angle light scattering (SALS) and rheometry. Under steady shear flow, the morphology of PC/SAN blends evolves via repeate...
http://www.polymer.cnt//ss/chengheiccas/publicationsshow_5605.html |
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Collapse and Swelling of Poly(N-isopropylacrylamide-co-sodium acrylate) Copolymer Brushes Grafted on a Flat SiO2 Surface
Poly(N-isopropylacrylamide-co-sodium acrylate) copolymer brushes grafted on SiO2-coated quartz crystal surface were prepared with a surface-immobilized initiator. The collapse and swelling of the thermally sensitive copolymer brushes in water were studied with quartz crystal microbalance in situ. The frequency and dissipation changes with the temperature increasing in the ran...
http://www.polymer.cnt//ss/chengheiccas/publicationsshow_5601.html |
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Shear-induced crystallization in phase-separated blend of isotactic polypropylene and poly (ethylene-co-octene)
Isothermal crystallization after shear in a blend of isotactic polypropylene iPP and poly
ethylene-co-octene PEOc was investigated by in situ optical microscopy and shear hot stage under various thermal and shear histories. Crystalline cylindrites during growth were observed in phase-separated iPP/PEOc blends for the first time. According to our results, the very long cyl...
http://www.polymer.cnt//ss/chengheiccas/publicationsshow_5598.html |
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Morphology Evolution of Bisphenol A Polycarbonate/Poly (Styrene-co-Acrylonitrile) Blends under Shear and after Shear Cessation
The deformation, breakup and morphology relaxation of a commercially important polycarbonate (PC)/ poly(styrene-co-acrylonitrile) (SAN) blend under and after steady shear flow have been studied in situ by combined phase contrast optical microscopy (PCOM), small angle light scattering (SALS) and rheometry. Under steady shear flow, the morphology of PC/SAN blends evolves via repeate...
http://www.polymer.cnt//ss/chengheiccas/publicationsshow_5583.html |
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Evaluation of PCDD/Fs and metals emission from a circulating fluidized bed incinerator co-combusting sewage sludge with coal
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http://www.polymer.cnt//ss/caizhiqi/publicationsshow_5430.html |
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Region-structure High Molecular Weight Poly(propylene carbonate) by Rare Earth Ternary Catalyst and Electron Donating Co-catalyst
Region-structure High Molecular Weight
Poly(propylene carbonate) by Rare Earth Ternary Catalyst and Electron Donating
Co-catalyst.
http://www.polymer.cnt//ss/taoyouhua/publicationsshow_5236.html |
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Thermo-mechanical properties of the composite made of poly (3-hydroxybutyrate-co-3-hydroxyvalerate) and acetylated chitin nanocrystals, Carbohydrate Polymers, 2013, 95, 100–106.
Bingjie Wang, Jun Li, Jianqiang Zhang, Huyan Li, Peng Chen, Qun Gu*, Zongbao Wang*, Thermo-mechanical properties of the composite made of poly (3-hydroxybutyrate-co-3-hydroxyvalerate) and acetylated chitin nanocrystals, Carbohydrate Polymers, 2013, 95, 100–106.
http://www.polymer.cnt//ss/wangzb/publicationsshow_4908.html |
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