polymerization
Polymerization
Synthetic fiber of nylon created by polymerization reaction. The same product is available in toy store as string confetti.
EXP 1. Explosive Polymerization of p Nitro Aniline
Spontaneous explosive Polymerization of p Nitro Aniline using dehydration using concentrated sulphuric acid.
Online Chemistry Lecture - Polymers
Video taken from an Online Chemistry course provided by Ecampus at Oregon State University. The topic of this lecture is on Polymers by Dr. Richard Nafshun. You can enroll in full length classes at ecampus.oregonstate.edu
Chemistry Tutorial 13.4c: Organic Reactions - Polymers
This video describes polymers and polymerization reactions.
Polymerization
An animated AUS-e-TUTE tutorial on addition and condensation polymerization reactions. www.ausetute.com.au
Polymers are made from Monomers
This clip is useful for GCSE chemistry, showing polymers are made from small units called monomers. I use shopping trolleys to represent monomers, then when they are pushed together in a chain, they are like polymers. It's a bit silly but a bit of fun!
Addition Polymerization
Describes the reaction steps in addition polymerization, using free radical polymerization as an example.
Biology:DNA Polymerization-Triphosphate Nucleotide
www.mindbites.com for a bundle of videos on DNA Replication Basics. For aneven broader bundle of videos that cover Molecular Genetics and DNA Replication basics, check out www.mindbites.com . To search for topic-specific help in our library of 400+ video products for Biology, please refer to our Biology category at: www.mindbites.com . To check out our full Biology video course, with 390+ videos included, refer to: www.mindbites.com . Or, for access to this single video, go to: www.mindbites.com Meselson and Stahl determined that DNA is replicated using the semi-conservative method, which means that the DNA opens down the middle, and each side acts as a template for the new strand. But this answer only produces more questions. How does the polymerization of the new strand of DNA happen? Polymerization is an endemic process (meaning it requires energy), and not spontaneous. It also required joining of the sugar-phosphates, in addition to the nucleotides. Finally, it requires an enzyme, known as DNA polymerase. Professor Wolfe explains how triphosphate nucleotides make the polymerization process possible. These triphosphate nucleotides float freely within the nucleus of the cell, and each DNA base exists in a triphosphate nucleotide form. The energy that is released by the breaking of the triphosphate bond is what provieds the energy for the polymerization of DNA. Taught by Professor George Wolfe, this lesson was selected from a broader, comprehensive course, Biology.
Online Chemistry Lecture - Polymer Strands
Video taken from an Online Chemistry course provided by Ecampus at Oregon State University. The topic of this lecture is on Polymer Strands by Dr. Richard Nafshun. You can enroll in full length classes at ecampus.oregonstate.edu
Polymer Synthesis In Chemistry Class
In Chemistry class, we made Nylon! Two solutions are mixed together. A paper clip is inserted down into the solutions. As the paper clip is withdrawn, almost by magic a very long strand of nylon is pulled from the beaker. The two solutions are hexamethylenediamine and adipoyl chloride.
Organic Chemistry 16
Over 200 videos, reshot in HD, now available at www.chemguy.com for just a donation! This clip: Chemguy discusses polymers and some environmental issues with organic compounds. Donations welcome at www.chemguy.com
Polymers
Local middle school students help faculty members and graduate students give a hands-on explanation of polymers at Princeton's 2010 Science and Engineering Expo. Read more: www.princeton.edu
Acrylic Polymer
Acrylic Polymer The polyacrylic plastic is a polymeric material used in medicine, most specifically in dentistry, construction and production of aquarian equipment. The components used to prepare the polymer are represented by the activating power and a monomeric liquid. Every 100 grams of liquid need to be thoroughly mixed with 50-75 grams of powder under room temperature. The polymerization takes place under the initiating effect of the reduction-oxidation system or initiator-activator system. The rate of polymerization depends upon the amount and nature of the activator and initiator, the ambient temperature, powder dispersion and monomer nature. At the temperature of over 30°С polymerization is rapid, whereas negative temperatures lead to its suspension. This polymer can be used in production and at home to manufacture products of different shapes and designs, as well as to practice artistic modeling. It takes 30-50 minutes for the polyacrylic plastic to harden. The process is accompanied by heat generation. The material produces no hazardous effect upon the skin, mucosa or airways of men. Ultrareliable, light-weight and convenient in processing, the polyacrylic polymers are becoming more and more widespread in all kinds of decorations, hardscapes and decorative products that help create unique interior designs at homes and a festive atmosphere in the street.
Living Polymerization and block co-polymers and their affects on nanomedicine!
Presentation attempting to introduce ideas about how living polymerization can lead to chemists designing block co-polymers and their applications within nanomedicine. See full list of references below: www.blockcopolymers.com www.ncbi.nlm.nih.gov www.almaden.ibm.com en.wikipedia.org nanomedicine.unmc.edu medconditions.net en.wikipedia.org worldaccount.basf.com research.uchicago.edu Presented by: Joseph Houghton With thanks to: Ben Cook for helping with the crackers and robot unicorn attack game play My Mum for helping me thinking through some of the analogies. Also I should really think of a more catchy title..... Created by Joseph Houghton Image accreditation to Google images Copyright April 2011 University of York Chemistry
Intro to Polymer Chemistry: Lesson 1, basic concepts
Lesson 2: www.youtube.com In this video, we take a look at: Polymers Monomers Degree of Polymerization Copolymers This is Lesson 1 of hopefully many that will give an introductory overview to polymer chemistry. Most undergraduate universities don't have a polymer course, so this will hopefully help young chemists who are interested in learning it. For this course, it's helpful to know organic chemistry. One semester should do.
MORGELLONS: Nano Artifacts Identified-Polymer Brush Found in Skin: Stars, Ladders, Comb
THE HEXAGONAL CRYSTAL IS FOR USE IN SEMICONDUCTOR DEVICES SUCH AS HIGH-OUTPUT POWER DEVICES, HIGH-FREQUENCY DEVICES, LIGHT-RECEIVING DEVICES, POSSIBLY A PHOTONIC DEVICE OR PERHAPS A DRUG DELIVERY SYSTEM.
Living Polymerization, RAFT, CSIRA, DUPONT and Nematodes
Notice the nematodes pizza? The slides of Morgellons artifacts came from Jan Smith's Webpage. I forgot to put that on the video. Notice that DUPONT is involved just like it was in WWII, with no conscience and no responsibility for consequences.
Course on Emulsion Polymerization Processes
Each September, the Institute Polymat from the University of the Basque Country offers an international course on Emusion Polymerization Processes, either for academy or industry.
Polymerization reaction classified
This presentation explains the brief classification of polymerization reaction.
Making polymers.wmv
Year 9 students at Oakwood Park Grammar School (OPGS) Maidstone, identifying how an addition polymer is made from alkene monomers. The students had not studied this process prior to recording. Mr Hunter (Chemistry Teacher at OPGS) takes the students through the process of polymerisation using molecular models.
Simulations of polymer (HD)
High Definition video available! Molecular Dynamics (MD) Simulations of the polymer Poly(ethylene-oxide) (PEO) at 400K. You see a time-window of approximately 20 pico seconds (0.02 ns). Molecular structure of ethylene oxide: C2H4O Cell conditions: 1515 atoms, 5 polymer chains, 43 monomers each. Cell size: ~2.4 nm Rendering: Povray - www.povray.org Animation: Avidemux - fixounet.free.fr
SDR™ Technology: Reducing Polymerization Stress for a Better Restoration
SDR™ Stress Reducing Resin Technology minimizes marginal integrity problems, post-op sensitivity and microleakage. Learn the DENTSPLY science behind SureFil® SDR® flow, the flowable base composite that is making posterior restorations easier to perform, while giving dentist and their patients reliable, long-lasting results.
The Evolution of Controlled Radical Polymerization
My presentation for Prof. Barrett's Introductory Polymer Chemistry class, McGill University Department of Chemistry.
Cellular Biophotonics at UCSD - Microtubule Polymerization
By using an advanced robotic laser microscope system, subcellular structures can be manipulated. In this video microtubule polymerization can be visualized after single microtubules are microablated. Cellular Biophotonics Laboratory (The Whitaker Institute and the Department of Bioengineering, University of California, San Diego and the Beckman Laser Institute and the Department of Biomedical Engineering, University of California, Irvine) www.robolase.ucsd.edu
Polymers, Teflon: IIT JEE Organic Chemistry Theory, AIEEE Online Coaching
www.exponenteducation.com provides IIT-JEE organic chemistry video lectures, IIT JEE study material and free NCERT, CBSE solutions forstudents of class X, XI, XII and droppers who are aspiring for IIT-JEE, AIEEE, NEET, MP PET, AIPMT, PMT, AIIMS, AFMC, CEE, MHTCET and other such engineering entrance exams. This video lecture is from IIT JEE organic chemistry syllabus and is focused on polymers. It discusses the commonly used polymer Teflon and its various uses in our normal life. Teflon as we know is resistive to chemical corrosion. Process of polymerization mostly happens in the presence of peroxide catalyst. This lecture will strengthen your understanding of polymers and organic chemistry and will enable you to solve similar question in JEE paper, practice tests, test series, previous years papers, sample question papers and help you build fundamental concepts. Chemistry is in general easy to score, however students typically do not give enough attention to the subject. IIT-JEE Organic Chemistry online coaching, basic level course and video lectures similar to this one are also available for classes X, XI, XII, MP PET, NEET, AIIMS, AIPMT and other medical and engineering entrance exam preparation at http and www.crackiitjee.com To be successful in JEE 2012, NEET 2012, AIEEE 2012, AIPMT 2012, PMT 2012, PET 2012 and other engineering and medical entrance tests you need to focused and disciplined with your preparation. Focus your study on building concepts, begin your ...
16. Isoprenoids, Rubber, and Tuning Polymer Properties
Freshman Organic Chemistry II (CHEM 125B) Isoprenoid or terpene natural products, that seem to be made from isoprene (2-methylbutadiene), are formed by oligomerization of electrophilic isopentenyl pyrophosphate (IPP). Latex, the polymer of IPP, became commercially important when Charles Goodyear, a New Haven native, discovered how to vulcanize rubber. Statistical mechanics explains such curious properties of rubber as contraction upon heating when tightly stretched. Specific chemical treatment confers useful properties on a wide variety of polymers, including hair, synthetic rubber, and plastics. The structure of copolymers demonstrates non-Hammond behavior and ionic character in the transition state for free-radical polymerization. 00:00 - Chapter 1. IPP as the Carbon Electrophile in Isoprenoid Biosynthesis 13:56 - Chapter 2. Latex, Rubber, and Vulcanization 20:14 - Chapter 3. Understanding Vulcanization - Polymer Properties and Statistical Mechanics 35:34 - Chapter 4. Other Polymers and Their Properties 38:22 - Chapter 5. Synthetic Polymers and Free-Radical Copolymerization Complete course materials are available at the Open Yale Courses website: oyc.yale.edu This course was recorded in Spring 2011.
Polymer Reactor (Molecular Weight Distribution)
Conceptual example that looks at how molecular weight distribution in a polymerization reactor depends on the residence time distribution, the concentration at which reaction takes place, and the chain growth rate.
Resin polymerization
Depiction of the process of resin polymerization as performed with an LED curing light.
Polymerization in a CSTR Part 1
Part 1 of the solution for a polymerization carried out in a CSTR. Find the molecular weight distribution, degree of polymerization, average molecular weights and polydispersity.
Polymer Goo Chemical Reaction
If we're talking in terms of the marketability of the end product of a chemical reaction, then the industrious Crystal Sorg would be a billionaire. Well, maybe a millionaire. If you're primary market-demographic is easily-amazed pre-teens, then you have to consider that their wallet-size is inversely related to the proximity of the latest comic-book movie rendition. And the "A-Team" is coming out soon.
Biopolymers - Dr Ramani Narayan, Michigan State University Interview
Find out more about related upcoming events at www.intertechpira.com Ramani Narayan, Ph.D. has been a director of NTIC since November 2004. He is a Distinguished Professor at Michigan State University in the Department of Chemical Engineering & Materials Science, where he has 105 refereed publications in leading journals to his credit, 18 patents, edited three books and one expert dossier in the area of bio-based polymeric materials. His research encompasses design & engineering of sustainable, biobased products, biodegradable plastics and polymers, biofiber reinforced composites, reactive extrusion polymerization and processing, studies in plastic end-of-life options like biodegradation and composting. He conducts carbon footprint calculations for plastics and products. He also performs LCA (Life Cycle Assessment) for reporting a product?s environmental footprint. He serves as Scientific Chair and board member of the Biodegradable Products Institute (BPI), North America. He serves on the Technical Advisory Board of Tate & Lyle. He served on the Board of Directors of ASTM International, an international standards setting organization and currently chairs the committee on Environmentally Degradable Plastics and Biobased Products (D20.96) and the Plastics Terminology Committee D20.92. He is also the technical expert for the USA on ISO (International Standards Organization) TC 61 on Plastics ? specifically for Terminology, and Biodegradable Plastics. He has won numerous ...
Polymer pump in action
When this polymer pump detects a specific chemical it begins to depolymerise. This means there's suddenly an osmotic gradient created by all the free monomers released. As the water tries to rush in to equalise this gradient the polystyrene nanoparticles - the black dots - are expelled from the surrounding area. This kind of pump could be used as a detector for diseases. By engineering the polymer to respond to a disease biomarker the pump could then be used to release drugs to treat the condition as and when it's needed. Read more at chemistryworld.org © Angewandte Chemie
15 Polymerization.mpg
Polymerization - Cross-Linking Disposable kit. Poly-vinyl alcohol (PVA) is cross-linked using borax, producing a gel, which can be later destroyed by the addition of salt. Enough materials for 5 experiments. The kit includes: 5 bottles of PVA solution, borax solution, dye solution, 5 salt containers, a stirring rod, 5 transparent plastic containers and a pipette. Cat. number: 1127-00
ISPAC 2010 part 1 Polymer Characteristics and Polymerization Types.mp4
Polymer Characteristics and Polymerization Types. Voice-over slide presentation by Prof. Alina Alb and Prof. Wayne Reed of the Tulane University Center for Polymer Reaction Monitoring and Characterization (PolyRMC). Presentation made at ISPAC 2010 conference. Introduction to Automatic Continuous Online Monitoring of Polymerization Reactions (ACOMP).
Novel Polymer Membrane Mimics Nature
For more information go to - www.csiro.au CSIRO, through the Water for a Healthy Country Flagship, in partnership with Hanyang University in Korea and the University of Texas, has developed a new plastic membrane that mimics pores found in plants and has the potential to mitigate greenhouse gas emissions and help purify water. This animation demonstrates the process. This video was produced by CSIRO Publishing - www.publish.csiro.au
Evolution of Controlled Radical Polymerization Question and Answer
Students from Prof. Barrett and Prof. Sleiman's classes grill me on CRP.
Post-Polymerization Chemically Crosslinked Urethane SMPs
Developed at Lawrence Livermore National Laboratory, Georgia Tech
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