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Showing 1 to 20 of 23 for “"silicon containing"”.
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Some Metal- and Silicon-Containing Polymers
Made available in DSpace on 2014-12-05T19:37:17Z (GMT). No. of bitstreams: 1 6000214.pdf: 3482277 bytes, checksum: 83ea8f47bf472a3dac47ec978f0e007b (MD5) Previous issue date: 1959
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Self-assembly of silicon-containing triblock copolymer and terpolymers
The block copolymer (BCP) self-assembly has garnered significant interest due to its ability to generate periodic nanostructures with a variety of morphologies. Compared to diblock copolymers that have been extensively studied to form the conventional morphologies such as spheres, cylinders, and …
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Synthesis, Processing, and Properties of Silicon-Containing Phthalonitrile Resins
… toughness. In this work phenyl-substituted organosilicon linkages were incorporated into PN monomers to investigate their effect on the processing, thermo-mechanical properties, and thermal and oxidative stability. Three hybrid silicon-containing phthalonitrile monomers were synthesized …
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Design of silicon-containing block copolymer materials for applications in lithography
… very specific class of BCPs, those that contain silicon in just one of the blocks. The presence of silicon in the molecule produces many lithographic advantages, but also requires specialized processing steps. Chapter 1 provides an overview of lithography and block copolymer self-assembly. …
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Modelling of Microstructure Development in Silicon-containing Bainitic Free-machining Steels
… to model the microstructure development of Si-containing bainitic free-machining steel, including allotriomorphic ferrite, idiomorphic ferrite, pearlite, Widmanstatten ferrite, bainite and martensite. The effect of recalescence has been included to give a better estimation of the cooling curve …
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Cyclization and cyclopolymerization of silicon-containing dienes ; Functionalization of carbosilane dendrimers
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1997.
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Synthesis, characterisation and pharmacological evaluation of silicon-containing aminoquinoline organometallic complexes as antiplasmodial, antitumor and antimycobacterial agents
… of this study. New mono- and heteronuclear silicon-containing ruthenium and rhodium metal complexes based on two ligand classes, have been synthesised and characterised utilising a range of analytical and spectroscopic techniques, confirming the structural integrity. The first class of …
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Synthesis of sila-analogs and silicon-containing derivatives of drugs and development and application of the Si-2,4,6-trimethoxyphenyl moiety as a novel protecting group in organosilicon chemistry
… disila-AG-045572 (disila-CMPD1), a series of silicon-based allosteric modulators of muscarinic receptors, and a partial synthesis of sila-gabapentin. Crystal structure data of rac-sila-venlafaxine hydrochloride, (R)-sila-venlafaxine hydrobromide, bexarotene, disila-bexarotene, and …
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Mono- and polynuclear Ferrocenyl-derived complexes: synthesis, characterisation and biological evaluation as antimycobacterial and antiplasmodial agents
Ferrocene-containing precursors, vinylferrocene and (E)-4-vinylferrocenylbenzaldehyde were prepared, by a Wittig olefination reaction and Heck cross-coupling reaction, respectively. Mononuclear ferrocenyl-derived imino complexes were synthesised by Schiff-base condensation reactions of …
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Performance limits of silicon solar cells due to structural defects
… and equipment costs to produce the crystalline silicon modules that account for over 90% of modules sold today are for production of silicon wafers. While lower-cost wafers can be produced with cheaper equipment, the efficiency of modules incorporating these wafers is limited by the presence of …
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Chirality Determination Using Three-Wave Mixing Microwave Spectroscopy
… of deep averaging to determine the structure of silicon containing molecules in collaboration with Dr. Guirgis from the College of Charleston. For each of these molecules, the ground electronic and vibrational state, pure rotational spectrum was analyzed via CP-FTMW spectroscopy. The parent …
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Thermally stable ZSM-5 zeolite materials with new microporosities
… process which involves the selective removal of silicon atoms from the parent zeolite in an aqueous basic solution. This treatment has the effect to decrease the Si/Al ratio while keeping the zeolite structure almost unmodified. In all cases, we noticed an enhancement of the ion-exchange …
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Aspects of radiation curing
… beam induced polymerisation of some novel silicon containing acrylates are discussed. The reactivity and film forming properties of these materials are compared with that of some commercial diluents such as, tripropyleneglycol diacrylate, TPGDA and trimethylolpropane triacrylate, TMPTA. …
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Compensation engineering for silicon solar cells
… on the electrical properties of crystalline silicon relevant to the operation of solar cells. We show that the control of the net dopant density, which is essential to the fabrication of high-efficiency solar cells, is very challenging in ingots crystallized with silicon feedstock containing …
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Compensation engineering for silicon solar cells
… on the electrical properties of crystalline silicon relevant to the operation of solar cells. We show that the control of the net dopant density, which is essential to the fabrication of high-efficiency solar cells, is very challenging in ingots crystallized with silicon feedstock containing …
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The effect of stress on the luminescence spectrum of irradiated silicon
Silicon crystals which have been irradiated with neutrons, high energy electrons, or gamma-rays at room temperature show two strong luminescence bands in the near infrared. Both bands have a sharp zero-phonon line followed by a series of broad phonon assisted peaks. The higher energy band …
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Environmentally focused patterning and processing of polymer thin films by initiated chemical vapor deposition (iCVD) and oxidative chemical vapor deposition (oCVD)
… set of functional organic, fluorinated, and silicon containing polymers. A variation of this process created amine functionalized biocompatible conducting polymer nanostructure patterns for biosensor applications. These were fabricated using grafting reactions between oxidative chemical vapor …
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Radical cyclization approach to a chemoenzymatic synthesis of morphine
… was designed which incorporated the ten-membered silicon-containing epoxide [figure 1], the diene diol [figure 2], and the known oxazolone [figure 3]. See: Figures 1, 2, and 3 Diene diol [figure 2] was isolated in the amount of 200 mg/L from the fermentation of (2-bromoethyl)benzene by Pseudomonas …
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Low dielectric constant fluorocarbon films containing silicon by plasma enhanced chemical vapor deposition
… electromigration resistance. Fluorocarbon films containing silicon (SiCF) have been developed in this work for low-k interlayer dielectric applications below 50 nm linewidth technology. The films were prepared by plasma enhanced chemical vapor deposition (PECVD) using gas precursors of …
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Interfacial bioorthogonal chemistry for biomaterials synthesis and patterning and development of catalytic method for "turning-on" the tetrazine ligation
… form, as well as the photoisomerization of silicon-containing hetero-trans-cycloheptene derivatives. The reactivity of both the trans-cycloheptene silver(I) complexes and the hetero-trans-cycloheptene derivatives were investigated. ☐ Based on the rapid trans-cyclooctene-tetrazine ligation, …
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