Porous polymers

Part 1 book "Fundamentals and applications of controlled release drug delivery" includes content: The need for drugs and drug delivery systems, overview of controlled release mechanisms, hydrophobic polymers of pharmaceutical significance, hydrogels, biodegradable polymers in drug delivery systems, diffusion controlled drug delivery systems, swelling controlled drug delivery systems, degradable polymeric carriers for parenteral controlled drug delivery, porous systems.

267p muasambanhan10 03-04-2024 9 0   Download

Ebook "Porous carbons – Hyperbranched polymers – Polymer solvation" review articles for the individual volumes are invited by the volume editors. Single contributions can be specially commissioned. Readership: Polymer scientists, or scientists in related fields interested in polymer and biopolymer science, at universities or in industry, graduate students.

223p tudohanhtau1006 29-03-2024 2 1   Download

Ebook "Principles of soft-matter dynamics: Basic theories, non-invasive methods, mesoscopic aspects" covers fundamental dynamic phenomena such as diffusion, relaxation, fluid dynamics, normal modes, order fluctuations, adsorption and wetting processes. It also elucidates the applications of the principles and of the methods referring to polymers, liquid crystals and other mesophases, membranes, amphiphilic systems, networks, and porous media including multiphase and multi-component materials, colloids, fine-particles, and emulsions.

670p coduathanh1122 27-03-2024 3 1   Download

Ebook "Porous polymeric bioresorbable scaffolds for tissue engineering" discusses the manipulation of polymer chemical structure and composition to tune scaffold physical properties, and optimization of scaffold 3D architecture by a smart use of both fabrication techniques. The multidisciplinary nature of this research is imperative in pursuing the challenge of tissue regeneration successfully.

132p manmanthanhla0201 26-02-2024 1 1   Download

Ebook "Metal-organic frameworks for photonics applications" is to give the reader, whether at a university or in industry, a comprehensive overview of an area where new insights are emerging that are of interest to a larger scientific audience. Thus each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years should be presented using selected examples to illustrate the principles discussed.

196p nhanphanguyet 28-01-2024 4 2   Download

Metaleorganic frameworks (MOFs) are a versatile category of porous coordination polymers which can be differentiated from other porous nanomaterials due to their fascinating properties such as adaptable surface chemistry, tuneable functionalities, and exceedingly large surface area and uniform/controllable pore size.

20p viberbers 09-08-2023 9 3   Download

Bacterial cellulose (BC) aerogels, which are fragile, ultra-lightweight, open-porous and transversally isotropic materials, have been reinforced with the biocompatible polymers polylactic acid (PLA), polycaprolactone (PCL), cellulose acetate (CA), and poly(methyl methacrylate) (PMMA), respectively, at varying BC/polymer ratios.

9p vihermione 06-01-2023 21 2   Download

Lanthanum (La)-based nanoparticles (NPs) are promising candidates for phosphate removal owing to their inherently high affinity towards phosphate. However, significant challenges remain to be addressed before their practical deployment, especially the problems associated with their aggregation.

8p vihermione 30-12-2022 52 2   Download

Additives are added to polymers in small concentration to achieve desired application properties widely used to tailor the properties. The rapid diversification of their molecular structures, with often only minute differences, necessitates the development of adequate chromatographic techniques.

8p viginny 23-12-2022 5 3   Download

Downstream processing (DSP) of large bionanoparticles is still a challenge. The present study aims to systematically compare some of the most commonly used DSP strategies for capture and purification of enveloped viruses and virus-like particles (eVLPs) by using the same staring material and analytical tools.

11p viginny 23-12-2022 9 3   Download

The research describes systematic approach to the novel synthesis and formation of a potential organic-inorganic drug carriers. The poly(trimethylolpropane trimethacrylate) and polymer-silica composites based on SBA-3 or SBA-15 mesoporous silica were fabricated by the suspension-emulsion polymerization method in the form of small micrometric porous beads (specific surface area approx. 500 m2 /g).

12p vironald 15-12-2022 9 3   Download

Microporous organic polyimides are well suited for carbon dioxide separation from gas mixtures based on their polar surface and their tendency towards ultramicroporosity. Nevertheless, their application potential is limited due to an inherent insolubility and infusibility, preventing an easy processing into functional objects like membranes.

8p vironald 15-12-2022 6 2   Download

As a new family of functional porous materials, conjugated porous polymers (CPPs) with tuneable porosities and molecular architectures show great potentials in adsorption, light harvesting, and catalysis applications. This paper describes the incorporation of strong visible-light absorbing BODIPY molecules into the skeleton of CPPs via Sonogashira coupling reactions.

8p vironald 15-12-2022 5 2   Download

This article presents the synthesis route for P3HT-porous silicon hybrids for thermoelectric applications. The conjugated polymer P3HT is incorporated into the porous silicon matrix by means of melt infiltration.

6p vironald 15-12-2022 7 3   Download

Syntheses and detailed spectroscopic characterizations of two similar conjugated microporous polymers formed by A4 + B2 and A2 + B3 type functional monomers via Sonogashira–Hagihara polycondensation are presented in this report. The two porous polymeric networks possess mono-, di-, and tri- (1-, 1,4-, and 1,3,5-, respectively) substituted benzene rings and fused thiophenic moieties (dithienothiophenes). Because of the different conjugation patterns, their solid state nuclear magnetic resonance, infrared, and ultraviolet/visible light absorption analyses indicated significant differences.

10p tudichquannguyet 29-11-2021 10 0   Download

Bài viết trình bày một phương pháp chế tạo các bề mặt chống đóng băng trên polymer, dựa trên sự kết hợp giữa các cấu trúc nano xốp với hợp chất bôi trơn (SLIPs). Các cấu trúc nano xốp trên bề mặt Nhôm sau quá trình ăn mòn ướt sẽ được kết hợp với hợp chất bôi trơn có sức căng bề mặt thấp để tạo nên các bề mặt trơn trượt với mục đích chống đóng băng.

9p viaespa2711 31-07-2021 14 3   Download

A critical appraisal of the current strategies for the synthesis of enantiopure drugs is presented, along with a systematic background for the computational design of stereoselective porous polymers. These materials aim to achieve the enantiomeric excess of any chiral drug, avoiding the racemic separation.

6p vijiraiya2711 27-05-2020 13 0   Download

A combination of gel-casting and polymeric foam infiltration methods is used in this study to prepare porous bodies of hydroxyapatite (HA), to provide a better control over the microstructures of samples. These scaffolds were prepared by impregnating a body of porous polyurethane foam with slurry containing HA powder, and using a percentage of solids between 40% and 50% w/v, and three different types of monomers to provide a better performance.

8p kequaidan1 16-11-2019 8 0   Download

A new approach has been developed for the preparation of mixed-mode stationary phases to separate proteins. The pore surface of monolithic poly(glycidyl methacrylate-co-ethylene dimethacrylate) capillary columns was functionalized with thiols and coated with gold nanoparticles. The final mixed mode surface chemistry was formed by attaching, in a single step, alkanethiols, mercaptoalkanoic acids, and their mixtures on the free surface of attached gold nanoparticles. Use of these mixtures allowed fine tuning of the hydrophobic/hydrophilic balance.

8p trinhthamhodang1 16-11-2019 14 1   Download

The present investigation deals with process optimisation of delignification of rice straw towards its micro-porous structural enhancement for its utilization in polymer grafting. The individual effect of influential parameters viz. sodium hydroxide concentration (1–12%, w/v), reaction time (30–126 min), and temperature (20–150 C) on delignification were studied in a single mode batch process. The process parameters were further optimized with Central composite design (CCD) approach of response surface methodology in Design expert software.

13p trinhthamhodang1 14-11-2019 13 0   Download