Polymer analysis

This study focuses on evaluating the effectiveness of surface response analysis methodology in experimental design, modeling, and optimizing manufacturing conditions for the properties of PP/BCSi composite materials. Parameters including mixing temperature, mixing time, and screw speed have been carefully selected to optimize technological factors in material fabrication.

10p vijaychest 16-05-2024 2 0   Download

A magnetic molecularly imprinted electrochemical sensor was developed for selective determination of sufentanil (SUF) based on carbon paste electrode (CPE) modified with methacrylic acid-ethylene glycol dimethacrylate-coated Fe3O4 nanoparticles (Fe3O4@MAA-EGDMA NPs). The structural properties, chemical structure, and electrochemical behaviors of the imprinted sensor were characterized by X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FT-IR), and square wave voltammetry (SWV), respectively.

14p dianmotminh02 03-05-2024 4 1   Download

To prepare the efficiently flame retardants (FR) for the highly flammable polymers, the novel nitrogen-phosphorus based FRs (P-N FR) (PN-3, PN-4, PN-5, and PN-6) were prepared via phosphorus halides and amine derivatives with 40- 90 % in yields. The appearance of P-N FRs are lightly white solid. All P-N FRs are water-insoluble and show a melting point above 40oC. The success of the synthesis was confirmed by NMR analysis.

8p dianmotminh02 03-05-2024 2 2   Download

This paper presents a developed three-dimensional (3D) finite element model (FEM) of flexural and shear strengthening of reinforced concrete (RC) T-beams using a CFRP (Carbon Fiber-Reinforced Polymer) system combined by near-surface mounted (NSM) strips and U-wraps subjected by asymmetric loading. The 3D FEM was verified by experimental results.

18p viohoyo 25-04-2024 3 2   Download

Part 2 book "Cambridge IGCSE® chemistry coursebook" includes content: How far, atterns and properties of metals, industrial inorganic chemistry, organic chemistry, petrochemicals and polymers, chemical analysis and investigation.

181p muasambanhan10 06-04-2024 5 0   Download

Ebook "Polymers on the crime scene: Forensic analysis of polymeric trace evidence" approaches the analysis of forensic contact traces from a polymer science perspective. The development of characterization methods of new or unusual traces and the improvement of existing protocols is described. The book starts with a general introduction to polymers and the issues related to transfer, persistence and recovery of polymeric traces.

364p tudohanhtau1006 29-03-2024 1 1   Download

Ebook "Multidimensional HPLC of polymers (Manuals in Polymer science)" presents the principle ideas of combining different analytical techniques in multi-dimensional analysis schemes. It reviews the basic principles and instrumentation of multi-dimensional chromatography and the hyphenation of liquid chromatography with selective spectroscopic detectors and presents experimental protocols for the analysis of complex polymers.

290p coduathanh1122 27-03-2024 3 1   Download

Ebook "Mass spectrometry of polymers – New techniques" reviews newer mass spectrometric techniques that are emerging or being established as polymer characterization tools. Here, ambient desorption ionization-mass spectrometry techniques, which offer intriguing new possibilities for direct analysis of polymer surfaces, are typical examples.

219p coduathanh1122 27-03-2024 4 1   Download

Ebook "Inorganic and organometallic macromolecules: Design and applications" demonstrates the breadth of these properties and some of the specialized analytical techniques that have been developed to characterize them. This book includes a cross-section of novel polymeric materials containing nontraditional atoms and emphasizes current chemical, biological, engineering, ceramic, and optical areas of application. It is intended for those interested in the general areas of biomedicine, catalysis, electronics and light, thermal stability, and analysis of materials.

472p manmanthanhla0201 27-02-2024 6 2   Download

Ebook "Life cycle assessment (LCA) of Light-weight eco-composites" provides scientific insights into the environmental issues related to biocomposites based on starch-polyvinyl alcohol (PVOH) blends. The author contributes significantly to the methodological issues underlying the Life Cycle Assessment (LCA) modelling approach.

414p nhanphanguyet 28-01-2024 3 2   Download

Ebook "Applications of monolithic column and isotope dimethylation labeling in shotgun proteome analysis" discusses the preparation of new monolithic columns and optimization of chromatography separation capability to improve coverage and accuracy of proteome analysis. Further, the author describes a novel online multidimensional chromatography system combined with automated online isotope labeling, which significantly improves the throughput, sensitivity and accuracy of quantitative proteomics.

103p nhanphanguyet 28-01-2024 4 2   Download

Ebook "Functional biopolymers" presents the synthesis, processing and application of selected functional biopolymers as new advanced materials. It reviews theoretical advances as well as experimental results, opening new avenues for researchers in the field of polymers and sustainable materials. The book covers various aspects, including the structural analysis of functional biopolymers based materials; functional biopolymer blends; films, fibers, foams, composites and different advanced applications.

382p lamquandat 28-12-2023 2 2   Download

We explored a new helical spring magnet (HSM) concept using micromagnetic simulation along with analytical modeling. The present HSMs can be made of a single magnetic material or micro/nano-scale magnetic particles in a polymer matrix, which provides for active control over the motion of the HSMs by additional forces generated by the magnetic interactions inside the HSMs.

10p viberbers 09-08-2023 5 4   Download

The increase of the diverse and complicated applications of stainless steel in all fields of industry production and various research activities have induced immense efforts in research and fabrication to increase its efficiency and sophisticated to minimize its corrosion by using among others conducting polymer coatings.

9p viberbers 09-08-2023 8 3   Download

The objective of the study is to determine the experimental mathematical model of the spraying process biodegradable polymer solution in coating technology for production smart urea fertilizer (SUFs). This polymer is synthesized from phosphated distarch phosphate (PDSP), polyvinyl alcohol (PVA) and polyacrylic acid (PAA), which is low cost, environmentally friendly.

6p vidoctorstrange 06-05-2023 9 4   Download

The objectives of this research work are: Study the clay intercalation by organic dye and develop a process to produce nanoclay-dye pigment with better stability and good performance; Conduct structural characterization to verify the level of intercalation and stability of clay-dye pigment by using X-Ray diffraction (XRD) and Transmission Electron Microscopy (TEM); Investigate the thermal stability of clay dye pigment using Thermo Gravimetric Analysis (TGA) to reveal the effect of dye intercalation into the clay on improving thermal stability of organic dye; Compound the clay- pigment with ...

141p runthenight07 01-03-2023 2 2   Download

Part 1 of ebook "Advances in 3D printing and additive manufacturing technologies" provide readers with content about: influence of process parameters on tensile strength of additive manufactured polymer parts using taguchi method; determination and comparison of the anisotropic strengths of fused deposition modeling P400 ABS; estimation of the effect of process parameters on build time and model material volume for FDM process optimization by response surface methodology and grey relational analysis;...

89p damtuyetha 16-02-2023 5 2   Download

Bacterial cellulose (BC) and silk fibroin (SF) are natural biopolymers successfully applied in tissue engineering and biomedical fields. In this work nanocomposites based on BC and SF were prepared and characterized by scanning electron microscopy (SEM), infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and thermogravimetric analysis (TGA).

11p vihermione 06-01-2023 6 3   Download

A polyelectrolyte complex (PEC) matrix formed between chitosan and pectin was developed to entrap a bioactive compound (anthocyanin), obtaining an useful pH indicator device. Polysaccharides of opposite charges such as chitosan and pectin can have a very strong intermolecular interaction.

9p vihermione 06-01-2023 6 2   Download

This work reports on water desorption from cassava starch in relation with the structure and conditioning of granules in suspensions or after equilibration in desiccators. The experimental work is performed by thermogravimetric analysis with isothermal and non-isothermal protocols and interpreted to derive the activation energies and desorption frequencies according to the humidity range with no adjustable parameter.

9p vihermione 06-01-2023 6 2   Download