Introduction A polymer is a large molecule comprised of numerous smaller molecules. It is possible for these large molecules to be linear‚ moderately branched‚ or highly interconnected. In the latter case the structure progresses into a large three-dimensional complex. The small molecules that serve as the basic building blocks for these large molecules are known as monomers (See Figure 1.1). An example of the relationship between a monomer and polymer is the commercially important material polyvinylchloride
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Alkynes Chapter 7 Triple Bond Structure Nomenclature IUPAC: use the infix -yn- to show the presence of a carbon-carbon triple bond 4 3 2 1 2 3 4 6 7 5 1 2 3 4 6 7 5 1 3-Methyl-1-butyne 6‚6-Dimethyl-3-heptyne 1‚6-Heptadiyne Common names: prefix the substituents on the triple bond to the name “acetylene” IUPAC name: Common name: 2-Butyne D imethylacetylene 1-Buten-3-yne Vinylacetylene Physical Properties
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Principles of Programming Languages‚ 3 Matteo Pradella DEI‚ PoliMi May 2012 Matteo Pradella (DEI‚ PoliMi) Principles of Programming Languages‚ 3 May 2012 1 / 54 1 Logic Programming: Prolog 2 Managing nondeterminism 3 The Prolog Language Matteo Pradella (DEI‚ PoliMi) Principles of Programming Languages‚ 3 May 2012 2 / 54 Introduction to Prolog Created around 1972 by Alain Colmerauer with Philippe Roussel‚ based on Robert Kowalski’s procedural
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ORGANIC CHEMISTRY II OBJECTIVES FOR FINAL EXAM 1. If given names‚ identify structures‚ or if given structures‚ identify name of each of the following types of compounds: a. Esters b. Amines c. Aromatic compounds including polynuclear aromatic hydrocarbons. 2. Identify structures that are products of the following reactions: a. Grignard reaction including identification of the nucleophile. b. Conversion of nitriles into carboxylic acids and acid derivatives c. Diels-Alder reactions
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Purpose Acetophenetidin can be formed through two methods‚ Williamson ether synthesis and amide synthesis. By working in groups of two we were able to complete both methods of synthesis routes. The end result should be the synthesis of a similar product‚ by verification between the two individuals. Reaction Experiment and Observations Amide Synthesis of Acetophenetidin The Synthesis reaction began by removing the colored impurities from the p-phenetidine‚ accomplished by mixing
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RELATIVE RATES OF ELECTROPHILIC AROMATIC SUBSTITUTION Juris Marie G. Garcia Institute of Chemistry‚ University of the Philippines‚ Diliman‚ Quezon City Date Performed: February 27‚ 2015 Date Submitted: March 13‚ 2015 Answers to Questions: 1.) Arrangement of Reactivity: (fastest to slowest) - Phenol‚ Nitrophenol‚ Acetanilide‚ Benzene‚ Chlorobenzene‚ Aniline - A reaction has occurred if there’s a change in color. The nature of the substituent‚ whether electron-donating to the ring or electron-withdrawing
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Unsaturated Hydrocarbons Unsaturated hydrocarbons Have fewer hydrogen atoms attached to the carbon chain than alkanes. Are alkenes with double bonds. Are alkynes with triple bonds. 1 Structure of Alkenes Alkenes (and alkynes) are unsaturated hydrocarbons Alkenes have one or more double bonds The two bonds in a double bond are different: - one bond is a sigma () bond; these are cylindrical in shape and are very strong - the other is a pi (π) bond; these involve sideways overlap of
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OUTLINE FOR SOFTWARE DEVELOPMENT (CAPSTONE) PROJECT i. Title Page ii. Approval Sheet iii. Acknowledgment iv. Dedication v. Executive Summary vi. Table of Contents vi. List of Figures vii. List of Tables viii. List of Graphs ix. List of Notations Chapter I INTRODUCTION Project Context Purpose and Description Objectives Scope and Limitations Review of Related Literature (6)‚ Studies (6)‚ and SYSTEMS (3) Technical Background Chapter II EVALUATION DESIGN AND FRAMEWORK Discussion
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JSUJSU MCIS Software Engineering Software Requirements Specification The Software Requirements Specification (SRS) is an important document usually produced in the development of a software product. It clearly and unambiguously defines the functionality of the software project for both the stakeholder and for the developer. Pressman states‚ “For large systems‚ a written document‚ combining natural language descriptions and graphical models may be the best approach. However‚ usage scenarios
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THEORY: The Diels-Alder cycloaddition reaction was discovered by Otto Diels and Kurt Alder and is very useful in the synthesis of polycyclic compounds. The Diels-Alder reaction can be described as: [4+2] cycloaddition- a diene with 4 π electrons + 2π electrons from the dienophile; a pericyclic concerted reaction- meaning the reaction occurs in a single step (no intermediates) and involves a cyclic redistribution of bonding electrons. In order for a Diels-Alder reaction to take place
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