ORGANIC CHEMISTRY Carbon atoms: * Carbon-carbon bonds are not easily broken * Each carbon atom forms 4 covalent bonds * The C-H bond is almost non-polar Classifying organic compounds: * Number of carbon atoms in longest chain: meth‚ eth‚ prop‚ but‚ pent‚ hex‚ hept‚ oct‚ non‚ dec * If it is a branch: -yl; di‚ tri or tetra means there is more than one branch‚ ethyl means there are 2 carbons coming off the branch * If it is a ring of carbons put cyclo at the front of the
Premium Chemical bond Oxygen Atom
IS PLASTIC BAD FOR THE ENVIRINMENT? A plastic material is any of a wide range of synthetic or semi-synthetic organic solids that are moldable. Plastics are typically organic polymers of high molecular mass‚ but they often contain other substances. They are usually synthetic‚ most commonly derived from petrochemicals‚ but many are partially natural. Whether you are aware of it or not‚ plastics play an important part in your life. Plastics’ versatility allow it to be used in everything from car
Premium Plastic Polymer Earth
plastic?? A material that contains one or more organic polymers of large molecular weight‚ solid in its finished state and at some state while manufacturing or processing into finished articles‚ can be shaped by its flow. Types of plastics 1.Thermosets. 2.Elastomers. 3.Thermoplastics. NATURAL RESINS solids or semi solid materials light yellow to darkbrown in colour carbon‚ hydrogen and oxygen. globules on the bark . SYNTHETIC RESINS derived primarily from petroleum. polystyrene
Premium Polymer Plastic Hydrogen chloride
The Lawn Mower – Notes - Before the invention of the lawn mower‚ grass was maintained through animals grazing the area. - Birds such as chickens and geese were either able to roam freely or were kept in movable pens while sheep and cattle cleared the larger areas of grass. - A scythe was used to cut off plants that the animals wouldn’t eat - The lawn mower was invented in 1830 by an English Engineer named Edwin Beard Budding - Obtaining his idea from observing a machine in a local cloth mill
Premium Lawn mower
A textile fibre is usually defined as a flexible‚ macroscopically homogenous cylindrical body mainly with circular cross- section having a high ratio of length to diameter (typically 100-3000: 1). Textile fibres are derived both from natural and synthetic origins. Natural fibres such as cotton‚ wool etc. are often found with lengths 1000-3000 times their diameter. On the other hand coarser natural fibres such as jute‚ flax‚ ramie‚ etc. have lengths 100- 500 times their diameter. However man-made fibres
Premium Optical fiber Glass Tensile strength
CHAPTER 1 INTRODUCTION Background of the Study For the past years‚ human society has struggled to come up with solutions for what to do with all the wastes in the environment. It is a dilemma that has grown only more exasperating. Plastics are one of the major dilemmas that we have. Although here in the Philippines‚ some places already banned the usage of plastic bags‚ we still noticed other things that are made of plastics that we just can’t take away from our system. Plastic is the most convenient
Premium Plastic Collagen
Additive: A Techno-Commercial Profile B.G. SAMPAT E-mail: bgsampat@bom3.vsnl.net.in INTRODUCTION Every activity in modern life is influenced by plastics and many depend entirely on plastic products. All these plastic products are made from the essential polymer mixed with a complex blend of materials known collectively as additives. Without additives‚ plastics would not work‚ but with them they can be made safer‚ cleaner‚ tougher and more colourful. Additives cost money‚ of course‚ but by reducing production
Premium Plastic Polymer Antioxidant
EWB-UK Workshop Guide Make your own Bio-Plastic Description A workshop focusing on the problems of plastics made by fossil fuels and a look into making your own bio-plastic. At a glance Total time: 1 hour Learning Styles: Visual‚ auditory‚ practical‚ participatory‚ teamwork Objectives: To learn about the challenges facing fossil fuel plastics and how to make your own bio-plastic Audience: Anyone Max/Min no. of participants: N/A (Dependant on amount of materials) Timetable
Premium Petroleum Starch
incorporate nanotechnology are already on the market and others are in advanced stages of development. These nanotechnology applications include: 1- Nanofiltration membranes‚ including desalination technologies; 2- Attapulgite clay‚ zeolites and polymer filtration; 3- Nanocatalysts; 4- Magnetic nanoparticles; 5- Nanosensors for the detection of contaminants. Nanofiltration membranes Researchers are using nanomaterials ( e.g carbon nanotubes‚ alumina fibres) to build structures that
Premium Nanotechnology Water Water pollution
Polymerization reaCTIONS polymers are high-molecular-weight compounds‚ fashioned by the aggregation of many smaller molecules called monomers. Ex. plastics that have so changed society and the natural and synthetic fibers used in clothing are polymers. Classification of polymers Homopolymers - consist of repeated long chains or structures of the same monomer unit. Ex. PVC(polyvinyl chloride) Copolymers - polymers that consist of more than one molecule. Trimers - molecules consisting
Premium