2 edition of Synthesis and studies on linear low density polyethylene based on 1-hexadecene found in the catalog.
Synthesis and studies on linear low density polyethylene based on 1-hexadecene
Thesis (M.Phil) - University of Birmingham, School of Chemistry, 1995.
|Statement||by Gilles Villautreix.|
When the sulfoxides of the type described above are used singly, some separation of fatty acid esters based on degree of unsaturation occurs. However, the total solubility of both saturated and unsaturated esters in sulfoxides is low, and when these sulfoxides are used singly, the total ester capacity of the phase is low. %0 Journal Article %A KANAMORI, Kazuyoshi %D %F / %H 金森, 主祥 %I The Ceramic Society of Japan %K Sol-gel %K Aerogels %K Xerogels %K Organic-inorganic hybrid %K Mechanical property %R /jcersj %T Organic-inorganic hybrid aerogels with high mechanical properties via organotrialkoxysilane-derived sol-gel process. %A Yoshimura, M. %D %F / %I PERGAMON-ELSEVIER SCIENCE LTD %K Topology optimization %K Heat conduction %K Heat convection %K Structural analysis %K Homogenization theory %R /masstransfer %T Topology optimization for thermal conductors considering design-dependent effects, including heat conduction and.
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Similar pyridine-imine complexes bearing a single ortho-disubstituted aryl imine moiety were reported to yield very low M-n polyethylene. In earlier studies, "sandwich" diimine nickel catalysts. Linear Alpha olefins are extremely versatile and have applications in the manufacturing of a number of important chemical products such as alkenyl succinic anhydrides, drag reducing agents, Poly Alpha Olefins, lubricants, oilfield chemicals, Alkylbenzenes, fuel additives, plasticizers, detergent alcohols, low density polyethylene (LDPE)and High /5(13).
In this contribution, we explored the copolymerization of propylene with higher α-olefins, including 1-octene (C8) 1-dodecene (C12), 1-hexadecene (C16) and 1-eicosene (C20), by using a dimethyl pyridylamidohafnium catalyst.
A series of copolymers with varied comonomer incorporation, high molecular weight and narrow molecular weight distribution were obtained at mild : Fei Yang, Xiaoyan Wang, Zhe Ma, Bin Wang, Li Pan, Yuesheng Li.
Shien and Chuang studied the thermal properties of low-density polyethylene (LDPE)/linear low-density polyethylene (LLDPE) blends compatibilized by VTES.
First, silane was melt grafted onto LDPE and LLDPE by means of free-radical Synthesis and studies on linear low density polyethylene based on 1-hexadecene book, : Lei Hu, Pascal Y. Vuillaume. Characterization and determination of thermal and radioluminescence properties of low-density polyethylene (LDPE)-(nanozeolite + Y 2 O 3) composite.
Linear alpha olefin is employed in a wide range of applications due to their chemical properties. Based on application, the market can be segmented into detergent alcohol, synthetic lubricant, low-density polyethylene (LDPE), high-density polyethylene (HDPE), linear low-density /5(10).
The crystallinity of polyethylene, which significantly affects the properties of the polymer, is quite sensitive to the concentration of its branches. Thus, it is necessary to estimate branch concentration with reasonable accuracy.
Currently, 13C NMR and gel permeation chromatography–Fourier transform infrared spectroscopy are widely-used analysis methods for the analysis of branch Cited by: 7. Interestingly, the sec-butyl branches were observed in polyethylene depending on polymerization temperature.
Polymerization of 1-alkene (1-hexene, 1-octene, 1-decene and 1-hexadecene) with C1-MMAO at room temperature resulted in branched polyolefins with narrow Mw/Mn values (ca. ), which suggested a living by: EPA2 EP EPA EPA2 EP A2 EP A2 EP A2 EP EP EP EP A EP A EP Cited by: 1.
This invention relates to polyolefin compositions. In particular, the invention pertains to elastic polymer compositions that can be more easily processed on cast film lines, extrusion lamination or coating lines due to improved resistance to draw resonance. The compositions of the present invention preferably comprise an elastomeric polyolefin resin and a high pressure low density type by: A 4-methylpentene polymer having: a unit derived from 4-methylpentene of 90 to % by mol; a unit selected from ethylene and an α-olefin, other than 4-methylpentene, having 3 to 20 carbon atoms of 0 to 10% by mol; and the polymer satisfying the following requirements: (a) a meso diad fraction measured by 13 C-NMR within the range of 98 to %; (b) a ratio of Z-average Author: Masakazu Tanaka, Masahiko Okamoto, Makoto Nakano, Sadahiko Matsuura.
Porous polymer spheres are generally prepared by the seeded polymerization with linear polymer seeds swollen by the same monomer, a cross-linking agent such as divinylbenzene, a diluent, and an initiator, followed by extraction of the linear polymer and diluent.
For example, Cheng et al. studied extensively the synthesis of porous. Non-limiting examples of olefin homopolymers include polyethylene (e.g., ultralow, low, linear low, medium, high and ultrahigh density polyethylene), polypropylene, polybutylene (e.g., polybutene-1), polypentene-1, polyhexene-1, polyoctene-1, polydecene-1, polymethylbutene-1, polymethylpentene-1, polyisoprene, polybutadiene, poly-1,5.
Thermoplastic SMPs are important class of polymeric-based shape memory materials. In this class of SMPs, two phase morphology is the main cause of the thermally induced shape memory effect.
One phase causes the physical crosslinking, and the other phase behaves as a molecular by: 5. Full text of "Textile chemicals [electronic resource]: environmental data and facts" See other formats. Stridh, G., Enthalpies of formation of 1-dodecene and 1-hexadecene and the CH 2-increment in the 1-alkene series, J.
Chem. Thermodyn.,8, [ all data ] Bretschneider and Rogers, Petroleum Engineer’s Guide to Oil Field Chemicals and Fluids Lignosulfonate Muds Lime Muds Sea Water Muds Nondispersed Noninhibited Systems Low-solids Fresh Water Muds Variable Density Fluids Gas-based Muds Drill-in Fluids Mud Compositions Inhibitive Water-based Muds Water-based Muds Oil-based Drilling Muds Synthetic Muds Inverted.
Most hydraulic fracturing fluids are water-based fluids that serve two purposes: to create pressure to propagate the fracture and to carry the proppant into the fracture. Proppants are solid materials that are used to keep the fractures open after pressure is reduced in the well.
The most common proppant. This banner text can have markup. web; books; video; audio; software; images; Toggle navigation. Studies by the EPA show that streams can be vulnerable to changes in water quality due to water withdrawals, most notably smaller streams or during periods of low flow (U.S.
EPA. Managing the rate and timing of surface water withdrawals (e.g., passby flows) can help mitigate potential impacts on.
DRAFT- DO NOT CITE OR QUOTE United States MpMIl Environmental Protection ^1 JF * Agency EPA//R/b External Review Draft June www, epa. gov /h fstu dy Assessment of the Potential Impacts of Hydraulic Fracturing for Oil and Gas on Drinking Water Resources (Appendices A - J) NOTICE THIS DOCUMENT IS AN EXTERNAL REVIEW DRAFT, for review purposes only.
Nanomagnetic actuation is being used in laboratory studies of stem cells to determine how these mechanical cues can be used to control stem cell differentiation for regenerative medicine applications. This book explores this rapidly expanding field. It will interest industry bioscientists and biomedical engineers as well as academics in.
The following equation5 is based on points taken from the YLand YG curves in Perry’s4 for both phases in turbulent flow (the most common case): YL = X+ X”+ Y G = X’YL (17) 8 zyxwvuts zyxwvutsrqpon Rules of Thumb for Chemical Engineers L c z.
‘2 0 6 2 P zyxwvutsrqpo zyxwvutsrqponm Thermoplastic vulcanizates comprise at least an ethylene/α-olefin interpolymer and at least one thermoplastic polymer, such as polyolefin. The ethylene/α-olefin interpolymer is a. Preface The McGraw-Hill Dictionary of Chemistry provides a compendium of terms that are central to chemistry and related fields of science and technology.
The coverage in this Second Edition is focused on the the areas of analytical chemisty, general chemistry, inorganic chemistry, organic chemistry, physical chemistry, and spectroscopy. The book starts by an introduction, followed by a chapter about oil as a source of energy and raw materials, and a chapter covering the industrial chemistry of synthesis gas.
The main four chapters of the book are devoted to the industrial chemistry of ethylene, propylene, butenes and butadiene and finally the aromatics.5/5(5). Key words: Brand equity; Purchase intention; Application Based Cement, Consumer Behavior 1 Saviru Cement (Pvt) Ltd, Colombo, Sri Lanka 2 Department of Commerce & Financial Management, University of Kelaniya, Sri Lanka 18 Assessing the Impact of Causes for Low Labour Productivity in Garment Industry in Katunayake Free Trade Zone J.
K Vithanage1. The book can be categorized into three parts: sample preparation and instrumentation techniques, application examples, and olfactometry. The nal two chapters discuss MS-based electronic nose applications (Chapter 13) and the chemical structures of avor and off-avor chemicals in various types of foods (Chapter 14).5/5(3).
An adhesive composition comprises: (i) at least one ethylene/α-olefin interpolymer, (ii) at least one tackifÊer; and (iii) optionally at least one additive, such as a plasticizer, wax and antioxidant. Preferably, the ethylene/α-olefin interpolymer has a Mw/Mn from about to aboutat least one melting point, Tm, in degrees Celsius, and a density, d, in grams/cubic centimeter, wherein.
Depending upon the method whereby it is polymerized, it can be produced as low-density polyethylene, high-density polyethylene, or polyethylene of several other densities. Table also illustrates that several of the products made from ethylene deriva- tives are themselves further reacted before finding some consumer use [1–6].5/5(1).
In general, high density polyethylene (HDPE) has a density that is greater than g/cc, linear low density polyethylene (LLDPE) has a density that ranges from g/cc to g/cc, and low density polyethylene (LDPE) has a density that is less than g/cc.
The ethylene/α-olefin interpolymers used in the polymer blend compositions have the processability similar to highly branched low density polyethylene (LDPE), but the strength and toughness of linear low density polyethylene (LLDPE).
However, the ethylene/α-olefin polymers are distinctly different from traditional Ziegler polymerized. Although several naming conventions exist in the technical literature, IUPAC names permit a consistent listing of all polymers.
Section II contains data and constants needed for polymer synthesis, kinetic mechanisms, and thermodynamic studies of polymerization and depolymerization reactions. The high pressure synthesis of low density polyethylene (LDPE) as currently practiced [ involves the polymerization of S C C ~ at H ~ bar and at °C.
Oxygen is still one of the initiators employed, others being benzoyl peroxide and azodi-iso 1 Introduction butyronitrile (AIBN). There are three main types of polyethylene, LDPE, LLDPE and HDPE: A - Low-density polyethylene, LDPE, B - Linear low-density ethylene, LLDPE, C - High-density polyethylene, HDPE.
The first has been discovered by accident in by Faust and Jason from the British Imperial Company, ICI, during a study of the reaction between ethylene and. A composition comprising: A) a thermoplastic polymer composition, andB) an impact modifying amount of an ethylene/α-olefin block interpolymer, wherein the ethylene/α-olefin b.
Patent application title: Enzymatic Antimicrobial and Antifouling Coatings and Polymeric Materials Inventors: C. Steven McDaniel Melinda E. Wales Juan Carlo Carvajal Agents: C. Steven McDaniel;c/o Daffer McDaniel, LLP Assignees: Origin: AUSTIN, TX US IPC8 Class: AA61KFI USPC Class: Abstract: Disclosed herein are a coating, a textile finish, a wax, elastomer, a filler, an adhesive.
Polymer – CrossRef Gu X, Mather PT () Entanglement-based shape memory polyurethanes: synthesis and characterization.
Polymer – CrossRef Oligomerization of the a-olens can be performed with, e.g, BF3, to which protonic cocatalysts, e.g, water or alcohols, are added. Production of Copolymers. Linear a-olens, in particular 1-butene, 1-hexene, and 1-octene, are used as comonomers in the production of high density polyethylene (HDPE) and linear low density polyethylene (LLDPE).Read: No category; Aldrich FT-IR Collection Edition II.
DOE workshop: Sedimentary systems, aqueous and organic geochemistry. SciTech Connect. Not Available. A DOE workshop on .Patent application title: ENZYMATIC ANTIMICROBIAL AND ANTIFOULING COATINGS AND POLYMERIC MATERIALS Inventors: C. Steven Mcdaniel (Austin, TX, US) Assignees: REACTIVE SURFACES, LTD.
IPC8 Class: AC09DFI USPC Class: Class name: Chemistry: molecular biology and microbiology process of utilizing an enzyme or micro-organism to destroy hazardous or .Patent application title: Coatings and Surface Treatments Having Active Enzymes and Peptides Inventors: C.
Steven Mcdaniel (Austin, TX, US) Assignees: REACTIVE SURFACES, LTD. IPC8 Class: AA01NFI USPC Class: Class name: Drug, bio-affecting and body treating compositions enzyme or coenzyme containing multienzyme complexes or mixtures of enzymes.