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Topic: Polymer chemistry


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In the News (Tue 24 Nov 09)

  
  Polymer Chemistry
Polymer architecture: Advanced polymerization methods for better control of polymer architecture form the basis for designing new and highly efficient functional oligomeric and polymeric materials.
Acrylic monomers and polymers: A broad synthetic approach to acrylics is at the heart of the scientific activities for water and paper treatment effects.
As a consequence of polymer degradation  the chains crack, surfaces chalk, colors change and physical properties such as impact and tensile strength or elongation at break decrease.
www.cibasc.com /inn-rd-plat-polymerchemistry   (389 words)

  
  NationMaster - Encyclopedia: Polymers   (Site not responding. Last check: 2007-10-15)
Polymers containing amide groups can form hydrogen bonds between adjacent chains; the positive hydrogen atoms in N-H groups of one chain are strongly attracted to the oxygen atoms in C=O groups on another.
Polymer known as polymer substrate is used for everyday banknotes in Australia and New Zealand, and is also used in commemorative notes in other countries.
An addition polymer is one in which the molecular formula of the repeating structural unit is identical to that of the monomer, e.g., polyethylene and polystyrene.
www.nationmaster.com /encyclopedia/Polymers   (1422 words)

  
 americanchemistry.com/plastics : plastics: the basics of polymer chemistry
The polymer chains in objects that are translucent and opaque are in a crystalline arrangement.
Thermal resistance is evident in the kitchen with pot and pan handles made of polymers, the coffee pot handles, the foam core of refrigerators and freezers, insulated cups, coolers and microwave cookware.
Polymers have many inherent properties that can be further enhanced by a wide range of additives to broaden their uses and applications.
www.americanchemistry.com /s_plastics/doc.asp?CID=1102&DID=4664   (1208 words)

  
 Polymer Chemistry - WWW Chemistry Guide
Polymer chemistry or macromolecular chemistry is a multidisciplinary science that deals with the chemical synthesis and chemical properties of polymers or macromolecules.
This is not an official document of either the chemistry department or the University.
UMR chemistry students have been encouraged to "play around with it, try new ideas, and in the end, make something useful." Covers: adhesion, coatings, mechanical properties, molecular weight, polymer solutions, time-temperature superposition, and viscosity.
www.chemistryguide.org /polymer-chemistry.html   (238 words)

  
 Polymer Chemistry
Polymer science is one of the increasingly important areas of modern science.
The program is one of a handful in the nation and provides students with a solid background in the traditional areas of chemistry (general, analytical, organic, physical, and inorganic) supplemented with advanced courses and intensive laboratory experiences in polymer science.
The polymer program may be completed in four or five years, depending on the amount of cooperative education, which may begin as early as the summer of the first year.
www.rit.edu /~932www/ugrad_bulletin/colleges/cos/polchem.html   (444 words)

  
 Polymers Degree Option   (Site not responding. Last check: 2007-10-15)
The types of specialty polymers that are important include those with stiff chains and strong intermolecular attractions to give thermal resistance and high strength, or chains with the types of delocalized structures that result in unusual electronic and optical properties.
Polymer characterization is an exciting field for those interested in the relationship of molecular structure to macroscopic properties.
Polymer physics and polymer physical chemistry are overlapping disciplines that are not, in many cases, easily delineated.
www.matse.psu.edu /academics/polymers.html   (1103 words)

  
 Laboratory of Polymer Chemistry   (Site not responding. Last check: 2007-10-15)
The Laboratory of Polymer Chemistry is one of the seven laboratories in the Department of Chemistry, University of Helsinki.
The first few decades of the laboratory were devoted to investigations on the physical properties of synthetic polymers, synthesis of polymeric materials in general, and on the derivatisation of wood components, mainly lignin.
The polymers synthesised at present in the laboratory are candidates for controlled drug release systems and potential vectors for gene delivery, but also polymers for advanced everyday applications in electronics.
www.chemistry.helsinki.fi /polylab/english   (424 words)

  
 Oxford University Press: Polymer Chemistry: Fred J. Davis
Polymer Chemistry: A Practical Approach in Chemistry has been designed for both chemists working in and new to the area of polymer synthesis.
The main bulk of the text is preceded by an introductory chapter detailing some of the techniques available to the scientist for the characterization of polymers, both in terms of their chemical composition and in terms of their properties as materials.
The book is intended not only for the specialist in polymer chemistry, but also for the organic chemist with little experience who requires a practical introduction to the field.
www.us.oup.com /us/catalog/general/subject/Chemistry/PolymerChemistry/?view=usa&ci=9780198503095   (286 words)

  
 Polymer chemistry Summary
Polymer chemistry is the field of study concerned with the production, classification, and modification of macromolecules or polymers.
Polymers describe the bulk properties of polymer materials and belong to the field of polymer physics as a subfield of physics.
A polymer is chemically described by its degree of polymerisation, molar mass distribution, tacticity, copolymer distribution, the degree of branching, by its end-groups, crosslinks, crystallinity and thermal properties such as its glass transition temperature and melting temperature.
www.bookrags.com /Polymer_chemistry   (2160 words)

  
 Polymer Chemistry Lab
In the Polymer Laboratory, we are using a single oil/water emulsion technique to encapsulate vascular reagents,a double water/oil/water emulsion technique to encapsulate growth factors, and a coacervation technique to encapsulate anti-tumor drugs into microspheres.
Polymer scaffolds with varying porosities, pore sizes and degradation rates are obtained.
Biodegradable polymer films and porous polymer scaffolds are chemically modified to graft cell-affinity molecules onto the surfaces.
www.btec.cmu.edu /facilities/polymers/polymers_lab.htm   (164 words)

  
 Polymer Chemistry Glossary
Examples are the swelling of a poly(acrylamide) polymer with aqueous solution (in a disposable nappy) or the dissolution of carbon dioxide in seawater (one of the possible antidotes to global warming that crops up in models of world climate.
Most synthetic polymers are not particularly biodegradable (poly(acrylamide) is a rare example of one that is readily degraded), but many are susceptible to breakdown by ultraviolet radiation from the sun and will crumble away in about the same time as an equivalent sheet of paper.
Some polymers, like styrene and vinyl chloride, will be difficult to depolymerise because the bonds between the side-groups (the phenyl ring and chlorine in these examples) are weaker than the C-C bonds between ex-monomers, and the polymer will degrade into different species than the starting materials.
www.kcpc.usyd.edu.au /discovery/glossary-all.html   (6465 words)

  
 Polymer Chemistry
On the basis of a long lasting experience model polymers of different kind can be prepared ranging from linear homopolymers to branched block copolymers of well defined molar mass and molar mass distribution, composition and architecture.
The other two labs are utilized for the characterization of the produced polymers.
The first laboratory is equipped with instruments basically used for the determination of the molar mass characteristics, while the second laboratory contains instruments which are used for the determination of other physical properties, e.g.
www.fz-juelich.de /iff/e_ins_polymerchemistry   (170 words)

  
 Georgia Tech :: Chemistry & Biochemistry :: Polymer Chemistry
Research in polymer chemistry covers a broad set of initiatives, from the synthesis of new monomers to the development of new theories for polymerization dynamics.
Researchers make use of instrumentation available in the Polymer Education and Research Center, which includes facilities for solid–state nuclear magnetic resonance, thermal analysis, gel permeation chromatography, and X–ray diffraction.
The research is highly collaborative, with close ties to other academic laboratories and with industrial partners.
www.chemistry.gatech.edu /research/polymer   (151 words)

  
 Welcome to Polymer Chemistry
For more than 15 years, Polymer Chemistry Innovations (PCI) has served customers in all areas of the specialty polymers field with unique expertise in difficult processes.
Our expert staff of PhDs and other experienced chemists can bring feasibility to the commercialization of polymers, with capabilities supporting all phases from laboratory scale through full-scale commercialization.
Aquazol is a high-performance water-soluble polymer – developed, manufactured and distributed worldwide exclusively by PCI.
www.polychemistry.com   (110 words)

  
 Division of Polymer Chemistry - American Chemical Society
Alan was the 2000 Nobel Prize reciepient in chemistry for his pioneering work on conducting polymers.
Elsevier, publishers of the journal Polymer, has agreed to sponsor both the Herman F. Mark Award and new new Mark Scholars Awards.
Polymer Preprints is distributed to POLY members on-line and as a CD-ROM product.
www.polyacs.org   (516 words)

  
 C&EN: CHEMISTRY HIGHLIGHTS 2002 - POLYMER CHEMISTRY
The new polymer could be useful in electronic components that tend to crack from repeated cycling.
Shape-memory polymers transform from a temporary initial shape into a different permanent shape.
A novel family of biomimetic arylamide polymers that could potentially be used to endow surfaces with antibacterial properties was developed by Michael L. Klein, William F. DeGrado, and coworkers at the University of Pennsylvania [
pubs.acs.org /cen/coverstory/8050/8050chemhighlights16.html   (267 words)

  
 POLYMER CHEMISTRY HYPERTEXT
We want Polymer Chemistry Hypertext to be one of your favorite polymer educational resources.
An educational resource compiled by students of Professor Stoffer at the Chemistry Department of the University of Missouri- Rolla.
This is not an official document of either the chemistry department or the University.
www.umr.edu /~wlf   (167 words)

  
 Laboratory of Polymer Chemistry in Brief   (Site not responding. Last check: 2007-10-15)
The Laboratory of Polymer Chemistry at the University of Helsinki was founded in 1967.
The research involves the synthesis of well defined polymers, often with complex molecular architectures, the analysis and characterisation of polymers by experimental methods, and the molecular modelling of the polymeric systems.
The range of polymer systems studied includes block and graft copolymers, polymeric nanoparticles, polymer gels, side chain and main chain liquid crystalline polymers, electronically conducting polymers and proton conducting polyelectrolytes.
www.helsinki.fi /~lakkisto/laboratory_of_polymer_chemistry_in_brief.htm   (276 words)

  
 :: POLYTECHNIC UNIVERSITY :: Department of Chemical & Biological Sciences & Engineering
Polymers combined with cells in hydrogels, porous scaffolds, electrospun fibers or other constructs will be used to deliver healthy cells and essential biological factors to aid in wound healing.
Synthetic polymers are of increasing interest as therapeutic agents owing to their enhanced pharmacokinetic profiles relative to small molecule drugs.
Our laboratories process polymers into micro- and nanospheres, polymers are electrospun into nanofibers, or they are used to prepare smart hydrogels that respond to biological stimuli.
www.poly.edu /cbs/graduate/biomedical/tracks/index.php   (604 words)

  
 Polymer Information Online
Polymers from a single monomer are indexed at the monomer name with the term "homopolymer" cited in the modification.
Polymers formed from two or more monomers are indexed at each monomer name with the modification "polymer with" followed by the other monomer names in alphabetical order.
Polymers of specified compounds with classes of compounds are indexed at the specific monomers in the chemical substance index (CSI) and at the class name in the general subject index (GSI).
www.lib.duke.edu /chem/polyinfo.htm   (1675 words)

  
 Polymer Chemistry: An Introduction
"Polymer Chemistry: An Introduction" is an excellent text for an upper division undergraduate or graduate level course in polymer chemistry.
The content is logically organized, there is fairly in-depth discussion of mechanisms of polymerization reactions and of the origins of stereoregularity in polymers, and the problems at the end of each chapter are more than adequate for reviewing the subject matter.
Professor Stevens clearly introduces the reader to the subject of polymer chemistry, relating the physical properties of macromolecular materials to polymer orientation, microstructure, stereochemistry and chemical composition.
www.flawebworks.com /webhostingbooks/isbn0195124448.html   (383 words)

  
 default   (Site not responding. Last check: 2007-10-15)
A polymer is a chain of small molecules joined together in a repeating fashion to form a single layer molecule.
Starting salaries for chemists in polymer science are in the high $40,000-per-year range for those with a Ph.D., approximately $35,000-per-year for M.S. degree holders, and in the mid $20,000-per-year range for someone with a B.S. degree.
Only a few colleges and universities have programs in polymer science, so a student's best access to experience in the field will be through internships in industry or through summer employment at an institution that has a polymers program.
www.chemistry.org /portal/a/c/s/1/acsdisplay.html?DOC=vc2\3wk\wk3_poly.html   (2546 words)

  
 General Chemistry Online: Glossary: Polymer chemistry
A polymer that softens or melts on heating, and becomes rigid again on cooling.
A polymer that solidifies on heating and cannot be remelted.
The setting action results from crosslinking of the polymer chains at high temperature- a process that is not reversed by cooling and reheating.
antoine.frostburg.edu /chem/senese/101/polymer/glossary.shtml   (185 words)

  
 Department of Chemistry at McMaster: Organic Research   (Site not responding. Last check: 2007-10-15)
Physical Organic Chemistry is concerned with the structure of organic molecules, and with the mechanisms of chemical reactions.
Two very exciting new fields of research are the selective chemical modification of polymers, and NMR studies of polymer networks and polymer-solvent interactions.
Polymer chemists in our department participate actively in the Brockhouse Institute for Materials Research (BIMR) and in the McMaster Institute for Polymer Production Technology (MIPPT).
www.chemistry.mcmaster.ca /research/organic.html   (853 words)

  
 Department of Chemistry at McMaster: Polymer Research   (Site not responding. Last check: 2007-10-15)
Brook, Michael A. Stöver, Harald D.H. Polymer Chemistry at McMaster involves the design, synthesis and characterization of novel monomers and polymers.
At the heart of this work are the basic principles of chemistry, which are utilized by our graduate students and researchers to create polymeric materials that have interesting scientific and industrial properties.
The field combines core concepts of organic, inorganic, and physical chemistry, with aspects of chemical engineering and materials science, to prepare sophisticated molecules and materials that are interesting not only scientifically, but also in the solution of industrially relevant macro-scale problems.
www.chemistry.mcmaster.ca /research/polymer.html   (208 words)

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