polymer clay nanocomposites synthesis and properties

... Venu and many more for their help and association I want to pay my deep regards and gratitude to all my teachers and friends who made this journey most enjoyable, interesting with their sharing and ... monodentate 4-styrylpyridine (4spy) ligand and its derivatives The synthesis of porous CPs, solvent induced structural dynamics, gas sorption and separation properties also have been described here ... CPs and its photo reactivity which are synthesized from using Cd2+, 1,4-benzenedicarboxylate as linker and 4spy and its derivatives as photoreactive ligand Among these, the CP with 4spy ligand...

Ngày tải lên: 09/09/2015, 11:15

... topology and function to zeolites, with enlarged cavities and periodic intra- and/or extra-framework organic functionality, is an ongoing synthetic challenge, and it is of exceptional scientific and ... imidazolate ligands.100Accordingly, half of the negatively charged imidazolate ligands were replaced by neutral ligands, giving rise to new materials, named MVLIF-1 and MVLIF-2 (MVLIF stands for mixed ... removal and water softening),adsorbents (separation and gas storage), etc.24–37The diversity a Functional Materials Design, Discovery and Development Research Group (FMD3), Advanced Membranes and...

Ngày tải lên: 30/11/2016, 22:25

... nanoparticles and the slight increase for SAN/PP blends with 15 and 20 wt% SAN was likely owing to the sea-island morphology and the decrease of crystallinity Authors’ contributions YJL and TY initiated and ... random copolymer composites Express Polym Lett 16:739–749 15 Li Y, Zhang G, Fu X, Wu G (2015) Preparation and properties of core‑ shell particles filled β‑nucleated polypropylene random copolymer ... treatments and properties Compos Struct 54:207–214 50 Marcinčin A, Hricová M, Marcinčin K (2009) Study of rheological, thermal and mechanical properties of PP/organoclay composites and fibres...

Ngày tải lên: 29/05/2020, 13:11

... conditional synthesis of Zn2SnO4 and Zn2SnO4: Mn2+ phosphors are estimated, and then the optical properties of Zn2SnO4 and Zn2SnO4: Mn2+ phosphors are studied in detail Chapter 5 Structure and Optical properties ... HANOI – 2020 Trang 2MINISTRY OF EDUCATION AND TRAINING HANOI UNIVERSITY OF SCIENCE AND TECHNOLOGYLE THI THAO VIEN Synthesis and properties of undoped and transition metal (Mn 2+ , Cr 3+ ) doped ... activated Zinc silicate and Tin stannate have not been reported yet In this work, we focus on the synthesis and properties of un-doped andtransition metal (Mn2+, Cr3+) doped Zn2SiO4 and Zn2SnO4 phosphors...

Ngày tải lên: 22/09/2020, 22:18

... Trang 11 MINISTRY OF EDUCATION AND TRAINING HANOI UNIVERSITY OF SCIENCE AND TECHNOLOGY Le Thi Thao Vien Synthesis and properties of undoped and Majors: Materials Science Code: 9440122 ... Chapter 3 Optical properties of Zn2SiO4 and Zn2SiO4: Mn2+ phosphors - Chapter 4 Optical properties of Zn2SnO4 and Zn2SnO4: Mn2+ phosphors - Chapter 5 Optical properties of Zn2SnO4: Cr3+ and Zn2SnO4: ... dissertation are Zn2SiO4 and Zn2SiO4: Mn2+ , Zn2SnO4 and Zn2SnO4: Mn2+, and Zn2SnO4: Cr3+ and Zn2SnO4: Cr3+, Al3+ They are systematically studied to evaluate the structural properties, morphology,...

Ngày tải lên: 22/09/2020, 22:21

... Synthesis of P3HT via a three-step polymerization process, including: Synthesis of 2-bromo-3-hexylthiophene from 2-bromo-3-hexylthiophene, synthesis of 2-bromo-3-hexyl-5-iodothiophene, and synthesis ... head-to-tail regioregularity and a small band gap of 1.86 eV, and was well soluble in various comment solvents These results have paved the way for research on OLED and solar cell in Vietnam ... the optimal reaction time and contained 88,2% of 2-bromo-3-hexylthiophene, and the final product after purification had a purity of over 95% In the third step of the synthesis of poly(3-hexylthiophene)...

Ngày tải lên: 22/01/2021, 20:38

... and 1045 cm−1 for 4 and 3278 and 1040 cm−1 for 4a.37,38 Weak absorptions for –C=N– at 1645 cm−1 for 4 and at 1652 cm−1 for 4a were also detected Microanalyses for 4 and 4a were satisfactory Synthesis ... performed under air by using DSC and DTG/TGA techniques and indicated that these polymers have good thermal stability AC and DC electrical conductivities of the polymeric phthalocyanines were investigated ... identified with microanalysis, UV-Vis, FT-IR, NMR, and MS spectral data 2 Results and discussion 2.1 Synthesis and characterization catechol and 3-chloro-1-propanol in EtOH, by modifying the relevant...

Ngày tải lên: 12/01/2022, 23:25

... different polymers’ properties It is observed that a small amount of well-dispersed clay mineral in the polymer matrix drastically improves its properties However, studies on polymer/clay nanocomposites ... organic modifiers, synthesis procedure, and structure of polyimide because of the chemical reactions and physical interactions involved Key words: Polyimide, nanocomposites, organoclay, clay dispersion ... understanding how the chemistry and morphology of the polymer matrix synergize with the surface chemistry, the size, and the shape Clay is a type of layered silicate The most commonly used clay...

Ngày tải lên: 12/01/2022, 22:37

... Trang 1Nanotechnology: Synthesis, Structures and Properties ‘a review of current carbon nanomaterials and other nanoparticle technologies’ Trang 21 Introduction ... 0,1,2 and 3; the materials of interest include metals, amorphous and crystalline alloys, semiconductors, oxides, nitride and carbide ceramics in the form of clusters, thin films, multilayers, and ... compounds that surely will be used in future technologies and applications Before the first synthesis and detection of the smaller fullerenes C60 and C70, it was generally accepted that these large...

Ngày tải lên: 28/05/2014, 15:03

... (Vaia and Wagner, 2004) Polymer/layered nanocomposites in general, can be classified into three different types, namely (i) intercalated nanocomposites, (ii) flocculated nanocomposites, and (iii) ... to intercalation by a polymer (Wypych andSatyanarayana, 2005) Figure N°4: Polymer-layered nanocomposites (Denault and Labrecque, 2004). The exfoliation of layered minerals and hence the preparation ... components leads to poor mechanical and thermal properties In contrast, strong interactions between the polymer and the layered silicate nanocomposites lead to the organic and inorganic phases being dispersed...

Ngày tải lên: 28/05/2014, 15:11

... has been paid to the synthesis and characterization of bimetallic nanoparticles due to their unique catalytic, electronic, optical, structural and thermal properties [1-5] and subsequent technological ... sensors, nanoelectronic devices [6-13] and biosensors [14] The properties and hence the applicability of these nanoparticles not only depend on their size and shape, but also on the combination ... control of structural type and composition of bimetallic nanoparticles comprised of Ag and Au have been a subject of considerable interest; and the developed of simple and versatile methods for...

Ngày tải lên: 04/06/2014, 15:20

... acceptance Fully formattedPDF and full text (HTML) versions will be made available soon Synthesis and characteristics of NH2-functionalized polymer films to align and immobilize DNA molecules ... Research Letters © 2012 Kim et al ; licensee Springer. Trang 2Synthesis and characteristics of NH2-functionalized polymer films to align and immobilize DNA molecules Hyung Jin Kim1, In-Seob Bae2, ... the NH2-functionalized polymer film was useful for aligning and immobilizing the DNA, and thus the DNA-templated nanowires Keywords: DNA molecules; NH2-functionalized polymer thin films; aniline-capped...

Ngày tải lên: 20/06/2014, 23:20

... research and teaching His insight into science and friendly attitude towards students also made the entire journey very fruitable and enjoyable I also thank him for his support and understanding ... Examples Polymer “Turn-on” Sensors 20 Chapter 2 Synthesis and Characterization of Poly(p-phenyleneethylene)-alt-(thienyleneethylene) with Amino Pendant Groups 32 2.3.1 Synthesis and Characterization ... Transfer and Energy Migration in PPETEs with Varying Receptor Loading 64 3.3.1 Synthesis and Characterization 70 Trang 14Chapter 4 A Highly Selective and Sensitive Inorganic/Organic Hybrid polymer...

Ngày tải lên: 13/11/2014, 10:54

... 3:::: Hydrothermal Hydrothermal Hydrothermal Synthesis Synthesis Synthesis of of of ZnO ZnO ZnO Nanostructures Nanostructures Nanostructures and and and Films Films Films 84 84 3.1 Introduction ... better control and understanding of Heffect in ZnO is of great technological interest This thesis focused on hydrothermalsynthesis, ferromagnetic and luminescent properties, and hydrogen effect of ... charged, singly charged, and neutral zinc vacancies, respectively Zni and Zni+ represent neutral and singly charged zinc interstitials, respectively VO and VO+denotes neutral and singly charged oxygen...

Ngày tải lên: 09/09/2015, 10:15

... blue and red color denote negative and positive charges, respectively 2.2.3 Photophysical and electrochemical properties Both compounds 2-3 and 2-8 are soluble in common organic solvents and ... and photochemical inertness, and have already been well investigated and documented.20 Extension of conjugation along the long molecular axis leads to higher order rylenes with low band gap and ... zethrene and its derivatives can be used as useful building blocks for non-linear optical materials and NIR dyes.8 Despite all of these attracting properties and promising applications, zethrene and...

Ngày tải lên: 10/09/2015, 09:28

... MICRO- AND NANOSTRUCTURES VIA MAGNETIC MEANS……… 6.1 Introduction ……… 6.2 Design I and Challenges……… 6.2.1 Theoretical Design and Calculations……… 6.2.2 Results and Discussions……… 6.3 Design II and ... possibilities of fabricating polymer micro- and nanostructures in easy and cost-effective ways The various applications demonstrated here showed great potential of polymer-based micro- and nanostructures ... background and literature review on (i) current nanofabrication techniques, (ii) applications of polymer nanostructures in biomedical fields and (iii) actuation of polymer micro- and nanostructures...

Ngày tải lên: 10/09/2015, 09:30

... the synthesis and properties of a novel zethrene bis(dicarboximde) compound are presented This molecule exhibits good stability and solubility compared to parent zethrene, and represents good candidate ... electrochemical properties of compounds 2-3 and 4-3 Table 5.1 Photophysical and electrochemical properties of compounds 5-1 and 5-2 Trang 10List of Figures Figure 1.1 Examples of low band gap PHs ... Introduction 26 2.2 Results and discussion 27 2.2.1 Synthesis and mechanism study 27 2.2.2 Theoretical calculations 31 2.2.3 Photophysical and electrochemical properties 32 2.3 Conclusions...

Ngày tải lên: 10/09/2015, 09:30

... Phase Separation of Random and Block Ionomers in Solution 332.3.2.2 Phase Separation of Random and Block Ionomers in the Solid State .36 SYNTHESIS AND CHARACTERIZATION OF ACRYLIC RANDOM-IONOMER MEMBRANES ... properties The synthesis, solution behavior, and PEM properties of aliphatic random-ionomer membranes are presented in Chapter 3 and Chapter 4 Chapter 5 and Chapter 6 are devoted to the synthesis, ... Objective and Scope of Thesis 4 (a) Design and Synthesis of New Alcohol-Resistant Alternative PEMs based on Aliphatic Random Ionomers 5 (b) Structural Characterizations of Random Aliphatic Ionomers and...

Ngày tải lên: 10/09/2015, 15:49

... 3 Synthesis and Characterizations of ZnS Nanocrystals with Different Shapes and Crystal Phases 53 3.1 Synthetic methodologies 55 3.2 Shape- and phase-controlled syntheses of ZnS nanorods and ... nanoparticles 58 3.3 Optical properties of ZnS nanorods and nanoparticles 69 3.4 Summary 73 3.5 References 74 Chapter 4 Synthesis and Optical Study of ZnS:Mn Nanoparticles and 77 ZnS:Mn/ZnS Core/shell ... Mn2+-doped ZnS nanomaterials 77 4.2 Synthesis and study of ZnS:Mn nanoparticles 83 4.2.1 Morphology and structural studies of ZnS:Mn nanoparticles 84 Trang 74.3 Synthesis and study of ZnS:Mn/ZnS core/shell...

Ngày tải lên: 11/09/2015, 09:11

... Research Objectives and Scope … ……… … 5 Chapter 2 Literature Survey ………… ……….….….……… …… 9 2.1 Fluoropolymers and Plasma Polymerization ……… 10 2.2 Polymer Modification and Fine Polymer Nanostructures ... LITERATURE SURVEY Trang 282.1 Fluoropolymers and Plasma Polymerization 2.1.1 Applications of Plasma Polymerized Fluoropolymers Fluoropolymer nanostructures and nanopatterns have broad applications ... surface properties of substrates 3) Factors Influencing the Result of Plasma Polymerization and Deposition In a plasma polymerization and deposition process, the structure of polymerized polymer...

Ngày tải lên: 14/09/2015, 08:27