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PEMANFAATAN ASAM OLEAT YANG BERASAL DARI MINYAK KELAPA SAWIT SEBAGAI BAHAN DASAR DALAM SINTESIS POLIURETAN

Mukhozim Fajar2010-09-03ePrints - UNY (Yogyakarta State University)

Penelitian ini bertujuan untuk mensintesis poliuretan dari asam oleat dan metilen-4,4'-difenildiisosianat serta mengetahui pengaruh variasi komposisi massa asam oleat terhadap sifat termal, ikatan silang, serta penentuan sifat mekanikny Sebanyak 200 gram minyak kclapa sawit ditransesterifikasi menggunakan metanol dala…

Food Chemistry and Fat Analysisbiodegradable polymer synthesis and propertiesBiodiesel Production and Applications

PEMISAHAN CAMPURAN ION LOGAM KADMIUM(II) DAN NIKEL(II) DENGAN VARIASI PANJANG KOLOM SECARA KROMATOGRAFI PENUKAR ANION

Dwi Putranto Apriliyanto2010-09-03ePrints - UNY (Yogyakarta State University)

Pada penelitian ini telah dilakukan pemisahan campuran ion logam kadmium(II) dan nikel(II) dalam sampel simulasi dengan HCI sebagai pengompleks dan eluen secara kromatografi penukar anion. Tujuan dari penelitian ini adalah untuk menentukan kapasitas resin Amberlit IRA-402, panjang kolom optimum dan % recovery ion loga…

Extraction and Separation ProcessesX-ray Diffraction in Crystallography

PENGARUH PENAMBAHAN PENDADAH Ca0 PADA SINTESIS Zr02/SO42¬MELALUI PENGENDAPAN BASA BERBASIS MATRIK POLIETILEN GLIKOL

Pebri、Cahyono Cahyono2010-09-03OpenAlex

Penelitian ini bertujuan untuk mengetahui dapat tidaknya senyawa zirkonia tersulfat terstabilkan kalsium oksida dipreparasi dengan metode pembentukan matriks polimer dan pengaruh penambahan pendadah Ca0 terhadap karakter senyawa zirkonia tersulfat terstabilkan kalsium oksida. Preparasi dilakukan dengan mereaksikan 3,2…

Material Selection and PropertiesZeolite Catalysis and Synthesis

PENSTABILAN NAOKRISTALIN ZIRKONIA OLEH MAGNESIUM OKSIDA MELALUI METODE PENGENDAPAN BASA BERBASIS PREKURSOR MATRIK POLIMER

Kurniati Rina2010-09-03OpenAlex

Laporan penelitian ini disusun berdasarkan hasil studi laboratoris mengenai penstabilan nanokristalin zirkonia oleh magnesium oksida melalui metode pengendapan basa berbasis prekursor matrik polimer. Tujuan penelitian ini adalah mengetahui bagaimana pengaruh temperatur kalsinasi dan etek penambahan dopant magnesium ok…

Material Selection and PropertiesGeotechnical and construction materials studiesZeolite Catalysis and Synthesis

SINTESIS 4-HIDROKSIKALKON DARI4-METOKSIKALKON MELALUI REAKSI DEMETILASI

Sri Vuri Rinjani Mita2010-09-03ePrints - UNY (Yogyakarta State University)

Pelitian ini bertujuan untuk mensintesis senyawa 4-hiclroksikalkon de.ngan reaksi demetilasi 4ymetoksikalkcin, menentukan karakteristik senyawa hasil sintesis dan menghitung rendemennya. Sintesis 4-hidroksikalkon dilakukan dengan reakai demerilasi rnenggamakan ballan dasar 4-metoksikalkon hasil sintesis dengan keniurn…

Natural Products and ApplicationsInorganic and Organometallic ChemistryThermal and Kinetic Analysis

SINTESIS DAN KARAKTERISASI SENYAWAALKALI DAN HIDROGEN TRITITANAT MzTi307 (M= Na, K dan H)

Budi Santoso Kristyan2010-09-03OpenAlex

Penelitian ini bertujuan untuk mensintesis senyawa alkali trititanat MZTi307 (M=Na dan K) dan mempelajari pertukaran kationiknya oleh larutan HCI 1 M menghasilkan senyawa hidrogen trititanat H2Ti307, serta untuk mengetahui karakter senyawa alkali dan hidrogen trititanat MZTi307 (M= Na, K dan H ). Penelitian diawali de…

Inorganic and Organometallic ChemistryVarious Chemistry Research TopicsX-ray Diffraction in Crystallography

PENGARUH VARIASI KONDISI PROSES POLIMERISASI POLIURETAN DARI MINYAK KELAPA SAWIT KASAR DAN METILEN-4,4'-DIFENILDIISOSIANAT (MDI)

Wahyuningsih Wahyuningsih2010-09-03OpenAlex

Penelitian ini bertujuan untuk mempelajari pengaruh variasi suhu polimerisasi dan lama pengadukan terhadap sintesis poliuretan, menentukan kondisi proses optimum untuk menghasilkan poliuretan dengan sifat lebih baik, mempelajari sifat termal dan mekanik, serta menentukan derajat ikatan silang (crosslink) poliuretan ha…

Material Selection and PropertiesFiber-reinforced polymer composites

PILARISASI ALKILAMINA (CnH2n+3N) DENGAN n = 3, 4, 5 DAN 6 KE DALAM LAYER ANION TETRATITANAT

Purwantoro Wawan2010-09-03ePrints - UNY (Yogyakarta State University)

Penelitian ini bertujuan untuk mempelajari sistem kristal, parameter kisi, kisi Bravais, bidang-bidang kristal, dan mengetahui hubungan jarak layer dengan n pada alkilamina (C,H2n+3N) dengan n = 3,4,5 dan 6 yang terpilar pada layer anion tetratitanat. \n Subjek penelitian yaitu material hasil pilarisasi dan objek pene…

X-ray Diffraction in CrystallographyInorganic and Organometallic ChemistryVarious Chemistry Research Topics

Near field investigation of surface plasmon polaritons

Jincy Jose2010-09-03OpenAlex

The interaction of light with metals contains a resonant phenomenon called the Surface Plasmon Resonance (SPR), at which the free electrons in the metal collectively oscillate. This collective oscillation of the free electrons, called Surface Plasmon Polaritons (SPPs), is highly sensitive to the medium adjacent to the…

Optical Coatings and GratingsPhotonic and Optical DevicesPhotonic Crystals and Applications

PENGARUH KONSENTRASI HCI SEBAGAI PENGOMPLEKS DAN FASA GERAK PADA PEMISAHAN ION LOGAM Cu (II) DAN Zn (II) SECARA KROMATOGRAFI ANION

Rakhrnawati Anita2010-09-03OpenAlex

Penelitian ini bertujuan untuk menentukan kapasitas resin Amberlit IRA-402 (Cl-), sentrasi optimum HCI sebagai pengompleks dan fasa gerak pada pemisahan Cu(II) Zn(ll) dalam kolorn resin Amberlit IRA-402 (Cl-) dan % recoverv Cu(II) dan Zn(ll) ,1 pemisahan. Kapasitas resin Amberlit IRA-402 (Cl-) ditentukan dengan menghi…

Extraction and Separation ProcessesInorganic and Organometallic ChemistryX-ray Diffraction in Crystallography

Caracterisation des suspensions par des methodes optiques. modelisation par reseaux de neurones

Juilien Bongono2010-09-03OpenAlex

La sédimentation des suspensions aqueuses de particules minérales microniques, polydisperses et concentrées a été analysée à l’aide du Turbiscan MA 2000 fondé sur la diffusion multiple de la lumière, en vue d’établir la procédure qui permet de déceler la présence d’une morphologie fractale, puis de déduire les règles…

Block Copolymer Self-AssemblyMaterial Dynamics and PropertiesElectrostatics and Colloid Interactions

Electromagnetic Wave Propagation in Anisotropic Magneto-Dielectric Media

Carmine Vittoria2010-09-03OpenAlex

Spinwave dispersions of magnetically ordered materials have been calculated by various authors. The reader is referred to seminal publications by Holstein-Primakoff, Dyson, Keffer, Akhiezer, etc., on the subject matter. Spinwave excitations in magnetic materials as well as superconductivity materials involve the colle…

Magnetic Properties and ApplicationsGeotechnical and Geomechanical EngineeringGeophysics and Sensor Technology

Principles of Viscoelastic Behavior

Tharwat F. Tadros2010-09-03OpenAlex

This chapter contains sections titled: Introduction The Deborah Number Strain Relaxation after the Sudden Application of Stress (Creep) Analysis of Creep Curves The Berger Model (Maxwell + Kelvin) Creep Procedure Stress Relaxation after Sudden Application of Strain Dynamic (Oscillatory) Techniques References

Polymer Nanocomposites and PropertiesElasticity and Material ModelingRheology and Fluid Dynamics Studies

Rheology of Suspensions

Tharwat F. Tadros2010-09-03OpenAlex

This chapter contains sections titled: Introduction The Einstein Equation The Bachelor Equation Rheology of Concentrated Suspensions Rheology of Hard-Sphere Suspensions Rheology of Systems with “Soft” or Electrostatic Interaction Rheology of Sterically Stabilized Dispersions Rheology of Flocculated Suspensions Models…

Material Dynamics and PropertiesPolymer Nanocomposites and PropertiesRheology and Fluid Dynamics Studies

Rheology of Emulsions

Tharwat F. Tadros2010-09-03OpenAlex

This chapter contains sections titled: Introduction Interfacial Rheology Bulk Rheology of Emulsions References

Polymer crystallization and propertiesPolymer Nanocomposites and PropertiesRheology and Fluid Dynamics Studies

Materials Engineering for Enhanced Tissue Scaffold Mechanical Properties

Jason W. Drexler2010-09-03OhioLink ETD Center (Ohio Library and Information Network)

As the body's natural scaffolding is largely comprised of collagen, a significant amount of research is being conducted focused on how to engineer collagen scaffolds with properties identical to natively derived collagen.A major benefit of utilizing collagen as the source material for tissue engineering scaffolds is i…

Bone Tissue Engineering MaterialsTissue Engineering and Regenerative MedicineElectrospun Nanofibers in Biomedical Applications

Photoconductivity Spectroscopy of Deep Level Defects of ZnO Thin Films Grown by Thermal Evaporation

Ian M. Steward2010-09-03OhioLink ETD Center (Ohio Library and Information Network)

by Ian Steward ZnO is a well studied semiconductor that possesses great potential for creating high quality photovoltaic devices.Because of its low exciton binding energy, large band gap, low dielectric constant, and low cost, much effort has been devoted to developing p-type ZnO (necessary for forming robust homojunc…

ZnO doping and propertiesElectronic and Structural Properties of Oxides

(2,2′-Bipyridine-κ2N,N′)tetrabromidoplatinum(IV)

Kwang Ha2010-09-03Acta Crystallographica Section E Structure Reports Online

In the title complex, [PtBr(4)(C(10)H(8)N(2))], the Pt(IV) ion has a slightly distorted octa-hedral coordination defined by two N atoms of the chelating 2,2'-bipyridine ligand and four bromide ions. As a result of the different trans effects of the N and Br atoms, the Pt-Br bonds trans to the N atom are slightly short…

Metal complexes synthesis and propertiesCrystal structures of chemical compoundsMagnetism in coordination complexes

Molar Enthalpy of Crystallization of (2S,5R,6R)-6-Amino-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic Acid in Aqueous Sodium Sulfate and Ammonium Sulfate Solutions

Min Su、Jingkang Wang2010-09-03Journal of Chemical & Engineering Data

Molar enthalpies of crystallization of (2 S,5 R,6 R )-6-amino-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid in sodium sulfate and ammonium sulfate aqueous solutions were estimated based on the solubilities. A positive effect of temperature on solubility of 6-APA in both Na 2 SO 4 and (NH 4 ) 2…

Crystallization and Solubility StudiesChemical and Physical Properties in Aqueous SolutionsChemical Thermodynamics and Molecular Structure