Not all polymers are linear. It is known that if I add a difunctional monomer, such...
Not all polymers are linear. It is known that if I add a difunctional monomer, such as divinylbenzene, to a reaction mixture like the one you used in this experiment (Polymerization of Styrene), that I will produce branched polymers. Draw a mechanism that describes how the branches are produced in this molecule.
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Not all polymers are linear. It is known that if I add a
difunctional monomer, such...
i) Which of the following is not true about step-growth polymers? Formation of step-growth polymers usually...
i) Which of the following is not true about step-growth polymers? Formation of step-growth polymers usually results in the loss of a small molecule. Step-growth polymers are formed by the reaction of bifunctional molecules. Step-growth polymers can be formed by a free radical mechanism. Step-growth polymers are also known as condensation polymers. Step-growth polymers do not reach high molecular weight until the reaction has gone nearly to completion. ii) Which of the following are not termination methods in radical polymerization?...
Polystyrene can be polymerized from the starting monomer (styrene) pictured below. a. Anionic polymerization is one...
Polystyrene can be polymerized from the starting monomer
(styrene) pictured below.
a. Anionic polymerization is one method of polymerization that
can be used to generate polystyrene from styrene. Explain what type
of initiator should be used for this reaction
and draw an example of a styrene monomer that has reacted with
initiator.
b. Using this anionic polymerization method and a starting
concentration of 1M styrene and 1mM initiator, what degree of
polymerization (Xn) would you expect if you use up...
please answer all questions 1. (2) Give the structure of the monomer that would be used...
please answer all questions
1. (2) Give the structure of the monomer that would be used to produce each of the following polymers. -CH2-CH-CH2-CH-CH2-CH -CH2-CH-CH2-CH-CH2-CH- Ci Ci Ci CH3 CH3 CH3 2. (5) Where are you most likely to find each of the following polymers in your everyday life: polyethylene terephthalate (PET) high-density polyethylene (HDPE) polypropylene (PP) polyvinyl chloride (PVC) polystyrene 3. (1) Polyester is an example of an addition or a condensation polymer? 4. (1) What must be done...
Which of the following statements about polymers is/are correct? select all that apply. Condensation polymerization reactions...
Which of the following statements about polymers is/are correct? select all that apply. Condensation polymerization reactions produce small molecules, like H2O, as byproducts to the polymer formation Addition polymers must be made from monomers which have at least one double or triple bond somewhere in the molecule. Polypropylene and polyethylene are high molecular weight alkenes.
answer 1-4 Polymers are large molecules that exist in chains composed of smaller repeating units called...
answer 1-4
Polymers are large molecules that exist in chains composed of smaller repeating units called monomers. They can come in many forms according to substitution patterns and functional groups. Linear polymers have the monomers repeated in just one line. Cross-linked polymers are branched. Linear polymers have just two ends. Cross-linked have more than two ends. If more than two functional groups (reactive sites) are present in the monomer, the monomers may connect to each other by cross-linking to form...
Questions for Experiment 8: Preparation and Properties of Polymers - Polyester and Nylon 1. Which polyester...
Questions for Experiment 8: Preparation and Properties of Polymers - Polyester and Nylon 1. Which polyester should be theoretically more rigid, the one obtained from ethylene glycol or the one from glycerol? Why? Explain with structural arguments. 2. Draw the structure for the polymer produced from the monomer vinylidene chloride CH-00) 3. Draw the structure of the copolymer produced from vinyl acetate and vinyl chloride. This copolymer is employed in some paints, adhesives, and paper coatings 00CH, CI coc Vinyl...
The mechanism for number 2 please Polymers11 2. Write the reaction mechanism (showing arrows) of the...
The mechanism for number 2 please
Polymers11 2. Write the reaction mechanism (showing arrows) of the synthesis of polystyrene. 4pts Include and show arrows in 2 initiation steps with benzoyl peroxide forming the phenyl radical. (this is shown in Figure 9 of the lab- just add all arrows) • A propagation step of the styrene (the monomer) and phenyl radical. • A second propagation step showing polymer growth by reacting styrene and the radical product of first propagation step. A...
please help with all the questions Meisa Taha 2. Define each term: addition (polymer), block (polymer), copolymer. Draw (in correct format) an addition block copolymer in the space below. Indicate...
please help with all the questions
Meisa Taha 2. Define each term: addition (polymer), block (polymer), copolymer. Draw (in correct format) an addition block copolymer in the space below. Indicate which monomers are used in the polymerization, and which parts are repeated in the polymer structure. 5 points 3 Condensation polymer. 6 points. e one example of a condensation polymer. Do not use "R" groups NOT NYLON. b. Show the monomer(s), polymer, and label the repeat unit. c. Provide a...
for this experiment i got a yield of 0.02g. what is the theoretical and percentage yield?...
for this experiment i got a yield of 0.02g. what is the
theoretical and percentage yield?
STUDENT HANDOUT Synthesis of poly(2-methoxy-542-ethylhexyloxy-1.4-phenyle Purpose of the Experiment ylhexyloxy-1.4-phenylenevinylene (MEH-PPV) The purpose of this experiment is 10 bis bromomethyl)-1-methoxy-4-2- experiment is to synthesize a polymer using a Gilch polymerization of 2,5 methyl)-1-methoxy-4-(2-ethylhexyloxybenzene, to investigate the polymer's photophysica properties, and to understand the mechanism of the polymerization reaction Introduction Polyphenylene vinylenes) or PPVs are highly luminescent polymers that are used for a variety of...
accordingly answer and i pt): Polymers and Monomers. Read each question chemical structure, in a oymer chemical structure based on the polymer name and provide the monomer unit chemical st...
accordingly answer and i pt): Polymers and Monomers. Read each question chemical structure, in a oymer chemical structure based on the polymer name and provide the monomer unit chemical structure, in addition. Lastly applications. An example answer is provided as guidance. , provide an example of how the polymers are utilized in (bio)engineering Polymer Chemical Structure Polymer Full Name and Abbreviation Usage Example for Monomer Unit Structure(s) _ _pt per box) pt per box) pt per box) Nucleic Acid (DNA)...
Polystyrene can be polymerized from the starting monomer
(styrene) pictured below.
a. Anionic polymerization is one method of polymerization that
can be used to generate polystyrene from styrene. Explain what type
of initiator should be used for this reaction
and draw an example of a styrene monomer that has reacted with
initiator.
b. Using this anionic polymerization method and a starting
concentration of 1M styrene and 1mM initiator, what degree of
polymerization (Xn) would you expect if you use up...
please answer all questions
1. (2) Give the structure of the monomer that would be used to produce each of the following polymers. -CH2-CH-CH2-CH-CH2-CH -CH2-CH-CH2-CH-CH2-CH- Ci Ci Ci CH3 CH3 CH3 2. (5) Where are you most likely to find each of the following polymers in your everyday life: polyethylene terephthalate (PET) high-density polyethylene (HDPE) polypropylene (PP) polyvinyl chloride (PVC) polystyrene 3. (1) Polyester is an example of an addition or a condensation polymer? 4. (1) What must be done...
Which of the following statements about polymers is/are correct? select all that apply. Condensation polymerization reactions produce small molecules, like H2O, as byproducts to the polymer formation Addition polymers must be made from monomers which have at least one double or triple bond somewhere in the molecule. Polypropylene and polyethylene are high molecular weight alkenes.
answer 1-4
Polymers are large molecules that exist in chains composed of smaller repeating units called monomers. They can come in many forms according to substitution patterns and functional groups. Linear polymers have the monomers repeated in just one line. Cross-linked polymers are branched. Linear polymers have just two ends. Cross-linked have more than two ends. If more than two functional groups (reactive sites) are present in the monomer, the monomers may connect to each other by cross-linking to form...
Questions for Experiment 8: Preparation and Properties of Polymers - Polyester and Nylon 1. Which polyester should be theoretically more rigid, the one obtained from ethylene glycol or the one from glycerol? Why? Explain with structural arguments. 2. Draw the structure for the polymer produced from the monomer vinylidene chloride CH-00) 3. Draw the structure of the copolymer produced from vinyl acetate and vinyl chloride. This copolymer is employed in some paints, adhesives, and paper coatings 00CH, CI coc Vinyl...
The mechanism for number 2 please
Polymers11 2. Write the reaction mechanism (showing arrows) of the synthesis of polystyrene. 4pts Include and show arrows in 2 initiation steps with benzoyl peroxide forming the phenyl radical. (this is shown in Figure 9 of the lab- just add all arrows) • A propagation step of the styrene (the monomer) and phenyl radical. • A second propagation step showing polymer growth by reacting styrene and the radical product of first propagation step. A...
please help with all the questions
Meisa Taha 2. Define each term: addition (polymer), block (polymer), copolymer. Draw (in correct format) an addition block copolymer in the space below. Indicate which monomers are used in the polymerization, and which parts are repeated in the polymer structure. 5 points 3 Condensation polymer. 6 points. e one example of a condensation polymer. Do not use "R" groups NOT NYLON. b. Show the monomer(s), polymer, and label the repeat unit. c. Provide a...
for this experiment i got a yield of 0.02g. what is the
theoretical and percentage yield?
STUDENT HANDOUT Synthesis of poly(2-methoxy-542-ethylhexyloxy-1.4-phenyle Purpose of the Experiment ylhexyloxy-1.4-phenylenevinylene (MEH-PPV) The purpose of this experiment is 10 bis bromomethyl)-1-methoxy-4-2- experiment is to synthesize a polymer using a Gilch polymerization of 2,5 methyl)-1-methoxy-4-(2-ethylhexyloxybenzene, to investigate the polymer's photophysica properties, and to understand the mechanism of the polymerization reaction Introduction Polyphenylene vinylenes) or PPVs are highly luminescent polymers that are used for a variety of...
accordingly answer and i pt): Polymers and Monomers. Read each question chemical structure, in a oymer chemical structure based on the polymer name and provide the monomer unit chemical structure, in addition. Lastly applications. An example answer is provided as guidance. , provide an example of how the polymers are utilized in (bio)engineering Polymer Chemical Structure Polymer Full Name and Abbreviation Usage Example for Monomer Unit Structure(s) _ _pt per box) pt per box) pt per box) Nucleic Acid (DNA)...
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