1. Polymer - Wikipedia, The Free Encyclopedia A variety of other natural polymers exist, such as cellulose, which is the main constituent of wood and paper. The list of synthetic polymers includes synthetic rubber, Bakelite, http://en.wikipedia.org/wiki/Polymer

Polymer From Wikipedia, the free encyclopedia Jump to: navigation search Appearance of real linear polymer chains as recorded using an atomic force microscope on surface under liquid medium. Chain contour length A polymer is a large molecule macromolecule ) composed of repeating structural units typically connected by covalent chemical bonds . Whereas the term polymer is sometimes taken to refer to plastics , it actually encompasses a large class of natural and synthetic materials with a wide variety of properties. Because of the extraordinary range of properties of polymeric materials, they play an essential and ubiquitous role in everyday life , ranging from familiar synthetic plastics and elastomers to natural biopolymers such as nucleic acids and proteins that are essential for life. Natural polymeric materials such as shellac amber , and natural rubber have been used for centuries. A variety of other natural polymers exist, such as cellulose , which is the main constituent of wood and paper. The list of synthetic polymers includes synthetic rubber Bakelite neoprene nylon ... silicone , and many more.

2. Polymers And Plastics From PerkinElmer - USA Our comprehensive portfolio of analytical solutions is designed to give you the higher accuracy, sensitivity and ease of use your laboratory demands for examining with http://las.perkinelmer.com/Catalog/Mkt.htm?CategoryID=Mkt Polymers

3. Polymer Technology Provides information on common polymers and the history of polymers. Also explains the basics of polymer flow and provides information on continuous reactors. http://polymer.w99of.com

4. Polymers: Information From Answers.com Concept Formed from hydrocarbons , hydrocarbon derivatives, or sometimes from silicon, polymers are the basis not only for numerous natural materials, but also for most of the http://www.answers.com/topic/polymers

var isReferenceAnswers = true; BodyLoad('s'); On this page Library Animal Life Health History, Politics, Society ... Technology Polymers Science of Everyday Things: Polymers Home Library Science Science of Everyday Things Concept Formed from hydrocarbons , hydrocarbon derivatives, or sometimes from silicon, polymers are the basis not only for numerous natural materials, but also for most of the synthetic plastics that one encounters every day. Polymers consist of extremely large, chain-like molecules that are, in turn, made up of numerous smaller, repeating units called monomers. Chains of polymers can be compared to paper clips linked together in long strands, and sometimes cross-linked to form even more durable chains. Polymers can be composed of more than one type of monomer , and they can be altered in other ways. Likewise they are created by two different chemical processes, and thus are divided into addition and condensation polymers. Among the natural polymers are wool, hair, silk, rubber, and sand, while the many synthetic polymers include nylon How It Works Polymersof Siliconand Carbon Polymers can be defined as large, typically chain-like molecules composed of numerous smaller, repeating units known as monomers. There are numerous varieties of monomers, and since these can be combined in different ways to form polymers, there are even more of the latter.

5. Investigation Underway In Kraton Polymers Bomb…1 Day AgoOfficers On Both Sides Prof. Shakhashiri www.scifun.org General Chemistry polymers polymers are substances whose molecules have high molar masses and are composed of a large number of repeating units. http://www.wtap.com/home/headlines/Investigation_Underway_in_Kraton_Polymers_Bom

6. Chemical Of The Week -- Polymers polymers polymers are substances whose molecules have high molar masses and are composed of a large number of repeating units. http://scifun.chem.wisc.edu/chemweek/polymers/polymers.html

POLYMERS Polymers are substances whose molecules have high molar masses and are composed of a large number of repeating units. There are both naturally occurring and synthetic polymers. Among naturally occurring polymers are proteins, starches, cellulose, and latex. Synthetic polymers are produced commercially on a very large scale and have a wide range of properties and uses. The materials commonly called plastics are all synthetic polymers. Polymers are formed by chemical reactions in which a large number of molecules called monomers are joined sequentially, forming a chain. In many polymers, only one monomer is used. In others, two or three different monomers may be combined. Polymers are classified by the characteristics of the reactions by which they are formed. If all atoms in the monomers are incorporated into the polymer, the polymer is called an addition polymer . If some of the atoms of the monomers are released into small molecules, such as water, the polymer is called a condensation polymer . Most addition polymers are made from monomers containing a double bond between carbon atoms. Such monomers are called olefins, and most commercial addition polymers are polyolefins. Condensation polymers are made from monomers that have two different groups of atoms which can join together to form, for example, ester or amide links. Polyesters are an important class of commercial polymers, as are polyamides (nylon).

7. Material Properties Of Polymers | Matbase - Material Properties Database Look here for physical, mechanical and environmental data on polymers. Find free data sheets with properties of materials at Matbase.com http://www.matbase.com/material/polymers/

8. E-polymers - Home Peer-reviewed e-journal in the area of polymer science and engineering, under the auspices of the European Polymer Federation (EPF). http://www.e-polymers.org/

Home Journal All scientific papers Editors ... About the Journal e-Polymers is a peer-reviewed internet journal under the auspices of the European Polymer Federation (EPF). In the area of polymer science and engineering, it makes novel scientific and technological results available both in academia and industry, and basically free of charge. Read more... Editorial Piet J Lemstra, Chairman e-polymers Communication is the key issue in the modern world and modern communication technologies turn the world into a global village. Information is the cornerstone of modern Science. Scientists, notably in academia, wish to communicate their ideas and concepts to their colleagues by publishing in international journals. Read more... New sponsorship "e-polymers" http://www.gfp.asso.fr ) for their decision to financially support our journal with a yearly contribution of 2000 Euros (at 2 Euro per member). We hope that other national polymer groups will follow this generous action with their own initiatives to further support our free internet journal. More...

9. Polymers macromolecules, polymerization, properties of plastics, biodegradability polymers 1. Introduction. Prior to the early 1920's, chemists doubted the existence of molecules http://www2.chemistry.msu.edu/faculty/reusch/VirtTxtJml/polymers.htm

Polymers 1. Introduction Prior to the early 1920's, chemists doubted the existence of molecules having molecular weights greater than a few thousand. This limiting view was challenged by Hermann Staudinger , a German chemist with experience in studying natural compounds such as rubber and cellulose. In contrast to the prevailing rationalization of these substances as aggregates of small molecules, Staudinger proposed they were made up of macromolecules composed of 10,000 or more atoms. He formulated a polymeric structure for rubber , based on a repeating isoprene unit (referred to as a monomer). For his contributions to chemistry, Staudinger received the 1953 Nobel Prize. The terms polymer and monomer were derived from the Greek roots poly (many), mono (one) and meros (part). Recognition that polymeric macromolecules make up many important natural materials was followed by the creation of synthetic analogs having a variety of properties. Indeed, applications of these materials as fibers, flexible films, adhesives, resistant paints and tough but light solids have transformed modern society. Some important examples of these substances are discussed in the following sections. 2. Writing Formulas for Polymeric Macromolecules

10. Polymers Division - Atul Ltd. Other Divisions. Agrochemicals; Aromatics; Bulk Chemicals Intermediates; Colors; Pharmaceuticals Intermediates; Floras; polymers. Lapox Epoxy Resins and Hardener systems are manufactured and http://www.atul.co.in/polymers/index.html

Contact Us Sitemap About Us Products ... Healthcare More on Polymers Our Products Supplier Information Contact Details PO ... PI Other Divisions Agrochemicals Aromatics Colors Floras Polymers Lapox Epoxy Resins and Hardener systems are manufactured and marketed by Polymers division of Atul Limited. The manufacture of Epoxy systems began in 1968 in a company established as a joint venture between Atul and Ciba, Switzerland. In 1999, on the merger of the JV with the parent company, the Epoxy operations became a part of Atul Limited. Having achieved a leadership position in the domestic market of Epoxy Systems, the company intends to play its rightful part in the global market. It has plans to build on the success already achieved in certain segments of the European and North American markets. The strategy is to target niche markets offering customized solutions for challenging applications. Recently added products such as Multifunctional Epoxy Resins, Cycloaliphatic Epoxy Resins, Epoxy Novolacs, Bis F Resins, Brominated Epoxies, Reactive Diluents, Phenalkamines, and Aromatic Amines have enlarged the long-standing grades offered by the company for applications in electrical casting, composites and laminating, civil and coating industries. These are strongly supported by a well-equipped Application Development Center and synthesis as well as analytical labs. Apart from an intensive network of branch offices and dealers in India, the company has established marketing subsidiaries in the UK (Manchester), the USA (Charlotte), Germany (Weisbaden) and China (Shanghai). Besides, it has enterprising agents/dealers in the UK, France, Germany, USA and China. These dealers stock Lapox to cater to the needs of their regular customers.

11. Votre Partenaire En Recherche Et Développement Des Polymères Specialises in the research and development of polymers for industry and medicine. http://www.polymerexpert.com/

12. Polymers.com Is For Sale Historic polymers.com Domain Name For Sale • Plastics.com LLC has announced it has placed for sale it's unused and historic predecessor domain name; polymers.com http://www.polymers.com/

polymers.com FOR SALE by PLASTICS.COM document.write(TODAY); main page history other plastics related domains about plastics.com ... contact Historic Polymers.com Domain Name For Sale Plastics.com LLC has announced it has placed for sale it's unused and historic predecessor domain name; polymers.com. Following is the press release For editorial information: plastics.com, llc. Greg Koski greg@plastics.com For editorial information: Middle Pond Media Miriam Wolff miriam@middlepondmedia.com FOR IMMEDIATE RELEASE plastics.com to sell polymers.com Fitchburg, Mass. (PLWIRE) Plastics.com, LLC. announced today the intent to sell its top level domain name polymers.com. Polymers.com is a powerful and long established domain name serving as a portal to the plastics industry for over ten years. Plastics.com LLC will continue to operate and serve the plastics community through its website located at www.plastics.com . Company officials stress that this sale does NOT impact the plastics.com website, which is a thriving, global industry portal representing all segments of the plastics industry. This announcement is expected to be exciting news to interested parties with a truly unique opportunity.

13. Plastic Scrap Recycling & Reprocessing - ABC Polymers ABC polymers provides innovative plastic scrap recycling and reprocessing services. Call (770) 9388336. http://abcpolymers.com/

CALL TODAY! (770) 938-8336 Home About ABC Polymers Materials Extrusion ... Contact Us ABC Polymers, Inc. 5682 E. Ponce de Leon Ave. Stone Mountain, GA 30083 Phone: (770) 938-8336 Fax: (770) 934-8621 Welcome to ABC Polymers.com! Here at ABC Polymers, our mission is to advance productivity and profitability in plastics through vision, direction, and attention to detail. For over three decades we have provided innovative recycling solutions beneficial to our customers and the sustainability of the environment. Not only must we increase the consciousness of recycling in the global community, we must also continue to find new solutions to meet the economic needs of our customers. ABC Polymers is honored to be a founder of the plastic scrap industry. Always giving our customers A Better Choice. About ABC Polymers, an Atlanta, Georgia Based Corporation MaterialsNeed it? Got it. Got it? Need it. Post Industrial Scrap Post Commercial Scrap Resins Extrusion Repelletizing System Compounding Granulation Size Reduction Metal Separation Wash and Dry Line Add Value to your product Decontamination System Fine Reduction Machinery for Sale Material Handling Equipment Extrusion Equipment Granulation Systems Toll Services Pelletizing Grinding Certified Destruction Wash and Dry and many more processes Value Added Services Logistics Lab Testing De-coring, Baling, Material Screening

14. Polymers In Automobile Industry About polymers and their uses and possible uses in the automobile industry, written for a general audience. http://polymerics.tripod.com/

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15. Polymers Exploring Materials Engineering. polymers. The word polymer literally means many parts. A polymeric solid material may be considered to be one that contains many chemically http://www.engr.sjsu.edu/WofMatE/polymers.htm

Exploring Materials Engineering Polymers The word polymer literally means "many parts." A polymeric solid material may be considered to be one that contains many chemically bonded parts or units which themselves are bonded together to form a solid. Two industrially important polymeric materials are plastics and elastomers Plastics are a large and varied group of synthetic materials which are processed by forming or molding into shape. Just as we have many types of metals such as aluminum and copper, we have many types of plastics such as polyethylene and nylon. Plastics can be divided into two classes, thermoplastics and thermosetting plastics, depending on how they are structurally and chemically bonded. Elastomers or rubbers can be elastically deformed a large amount when a force is applied to them and can return to their original shape (or almost) when the force is released. Taken from Principles of Materials Science and Engineering , William F. Smith, McGraw-Hill , Inc., New York. We are all pretty aware of the various plastic/polymer products in our life. On the left is a montage of typical plastic extrusion products. Plastic parts are often produced by the injection molding process. To get an idea of how this is done, visit the following

16. :: Welcome To DEXCO Polymers :: Dexco polymers LP, a limited partnership of affiliates of the Dow Chemical Company and ExxonMobil Chemical Company, produces both SIS and SBS products http://www.dexcopolymers.com/

Dexco Polymers LP, a limited partnership of affiliates of the Dow Chemical Company and ExxonMobil Chemical Company, produces both SIS and SBS products from its dedicated facilities in Plaquemine, Louisiana. From this world scale plant, Dexco is able to efficiently serve customers throughout the Americas, Europe, and Asia. Our associates are assigned employees of the parent companies, therefore ensuring our ability to obtain and retain the finest personnel that The Dow Chemical Company and ExxonMobil have to offer. Latest Updates New High-Efficiency Styrenic Block Copolymers, Tackifier for Adhesives By Shawn W. Mowry, Ph.D., Senior Research Engineer, ExxonMobil Chemical Co., Baytown, TX " T o achieve improved adhesive performance, two high-efficiency four-arm radial styrene-isoprenestyrene (SIS) block copolymers were developed by Dexco Polymers L.P."... (read more) Dexco Polymers LP, a limited partnership of affiliates of The

17. PolymerFEM - Constitutive Models - Non-linear FEA Of Polymers Forum for discussing constitutive models for polymers and their implementation in general purpose finite element programs. http://polymerfem.com/

Register Help Remember Me? Home Front Page News About ... Home Front Page If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. Front Page Upcoming Polymer FEM Training Class by Jorgen View Profile View Forum Posts Private Message ... View Articles Do you perform FEA of polymer components but do not know the tradeoffs, pitfalls, and benefits of different constitutive models, modeling options, and material test methods? Do you want to get a competitive advantage by using more advanced and accurate FEA techniques? The next class will be given in Boston on November 17-18, 2010. Send us a message if you want to sign up for the class, or if you are interested in a specialized training class for your company. The following pdf-file gives more information about the training class. Read More MCalibration Movie Demo by Jorgen View Profile View Forum Posts Private Message ... View Articles Published on 2010-09-07 22:25 I created a short movie that demonstrates the MCalibration software. If you ever need to calibrate a material model for use with Abaqus, ANSYS, or LS-DYNA, then you should check out MCalibration. This software can calibrate all user-material models in the PolyUMod library, and also all built-in material models in Abaqus.

18. Polymer: Definition From Answers.com polymers with microcrystalline regions are generally tougher (can be bent more without breaking) and more impactresistant than totally amorphous polymers. http://www.answers.com/topic/polymer

19. AspenTech : Solutions : Industry Solutions : Polymers aspenONE for polymers provides realtime enterprise-wide visibility and control over operations - from asset creation, through production planning and execution, to customer http://aspentech.com/solutions/industry_solutions/polymers/index.cfm

20. Polymers They're Everywhere Main What Are polymers? In Nature At Home Recycling Parents and Educators Credits Geography Education 1997 National Geographic Society. http://www.nationalgeographic.com/resources/ngo/education/plastics/

What Are Polymers? In Nature At Home Recycling What Are Polymers? In Nature At Home Recycling ... Geography Education

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