AS Chemistry Polymers Nylon demo You have been

AS Chemistry Polymers  Nylon demo  You have been

AS Chemistry Polymers Nylon demo You have been given a hydrocarbon cut it out so it is in one piece Then fold it like in the pictures, but do not

stick it together What molecule do you think you have been given? Explain your answer. Carbon atoms Hydrogen atoms

You have ethene Now break the double bond Join your molecule to the person next to you using glue, tape or staples Do this until they are all joined to together in a big chain Double bond

Carbon atoms Hydrogen atoms Polymers from Alkenes Objective: to know about the addition

polymerisation of alkenes Success criteria: describe the addition polymerisation of alkenes deduce the repeat unit of an addition polymer obtained from a given monomer identify the monomer that would produce a given section of an addition polymer

Polymerisation Polymers are long chain molecules built up from a whole lot of identical small molecules called monomers.

Monomers are: Always unsaturated (double bond present) Based on a particular alkene Addition polymerisation: Is the process by which these monomers are joined.

Results in long saturated chains. Polyalkenes Alkenes can undergo addition reactions with themselves to form a long chain polymer molecule. This reaction is addition polymerization. The polymer can be represented by showing the repeating

unit with square brackets around it. The n stands for a unspecified number of monomer units. 7 of 34 Boardworks Ltd 2009 Polymerization of ethene

8 of 34 Boardworks Ltd 2009 Alkene molecules form addition polymers Pearson Education Ltd 2008 This document may have been altered from the original

Other polyalkenes Propene undergoes addition polymerization to form polyproprene: Chloroethene undergoes addition polymerization to form polychloroethene:

10 of 34 Boardworks Ltd 2009 Addition polymerisation You need to be able to predict: The repeat unit of a polymer from a specified monomer.

The monomer used to make a specific polymer. The general reaction is: Formation of poly(ethene) Week 16

Formation of poly(propene) Pearson Education Ltd 2008 This document may have been altered from the original Draw and name the products

Week 16 Poly(tetrafluoroethene) (Teflon or PTFE) Pearson Education Ltd 2008 This document may have been altered from the original Week 16

Draw the monomer used to make Orlon Pearson Education Ltd 2008 This document may have been altered from the original Which alkene?

16 of 34 Boardworks Ltd 2009 Exam Question A short section of a polymer is shown below. Name and draw the structure of the monomer used to

produce this polymer. Cyclopentene (see structural formula below) can be polymerised to give poly(cyclopentene). Draw a section of poly(cyclopentene) to show two repeat units. Another exam question

Polymers from Alkenes Objective: to know about the addition polymerisation of alkenes Success criteria: describe the addition polymerisation of alkenes deduce the repeat unit of an addition polymer obtained from a given monomer

identify the monomer that would produce a given section of an addition polymer

Recently Viewed Presentations

  • HPE Factory Express Service - Beyond SMB Growth

    HPE Factory Express Service - Beyond SMB Growth

    Why Factory Integration for Synergy. HPE Synergy is built from the ground up for ComposableInfrastructureby allowing users to compose physical and virtual compute, storage, and fabric pools into any configuration for any application through a single interface.
  • Social Media - crd-msde.org

    Social Media - crd-msde.org

    A potential employer did a search and found Phil's "Fakebook" page? Revisit the information on his page and re-rank the appropriateness (if necessary). Revisit the information on his page and re-rank the appropriateness (if necessary).
  • Adventures with Fermion Monte Carlo

    Adventures with Fermion Monte Carlo

    Conjecture: the n-vertex graph gives rise to a polynomial of degree n in the denominator of the contour integral Contour integrals reduce to a sum over n residues x1 x2 xP x3 Harmonic springs hold together a "ring polymer" One...
  • Building a Community of Practice through Curriculum Integration

    Building a Community of Practice through Curriculum Integration

    Research Issues. Although previous studies on L2 interactional competence (IC) attempted to show how learners develop their interactional competence, except for Cekaite (2007) "little is known about the process by which learners develop their L2 IC, nor about the stages...
  • Accepted! College Selection and Admission PPT

    Accepted! College Selection and Admission PPT

    Private entities or persons located in Texas that are not Texas public school districts, Texas Education Service Centers, or Texas charter schools or any entity, whether public or private, educational or non-educational, located outside the state of Texas MUST obtain...
  • Objektové databázy

    Objektové databázy

    Objektové databázy PDT Genči
  • Reactive Arthritis: Definitions

    Reactive Arthritis: Definitions

    In contrast to RA, osteopenia is not observed and DIP joint involvement is common. Classic "pencil-in-cup" deformity May have erosion adjacent to ankylosis or new bone formation Periostitis Psoriatic arthritis-initial evaluation History and physical exam Close attention to the subtle...
  • The War Between Mice and Elephants - Academics

    The War Between Mice and Elephants - Academics

    Daniel Courcy- [email protected] Nathan Salemme- [email protected] Outline Introduction Analyzing Short Flow Performance Scheme Architecture and Mechanisms Simulation Discussion Conclusion References Most figures, tables and graphs in this presentation were gathered from the Journal paper: The War Between Mice and Elephants.