The properties of a specific polymer depend only on the chemical structure of its repeat unit...
The properties of a specific polymer depend only on the chemical structure of its repeat unit and its molecular weight. True or false? And explaination.
Homework Answers
True. A polymer is nothing but a repeated unit of a monomer. Ergo it's chemical properties depend on the monomer that it consists of. Meanwhile the physical properties depend on the molecular weight of the polymer
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The properties of a specific polymer depend only on the chemical
structure of its repeat unit...
1 Polymer Structure (4 pts) Sketch the repeat unit and determine the repeat unit molecular weight...
1 Polymer Structure (4 pts) Sketch the repeat unit and determine the repeat unit molecular weight for the following polymers: a. polystyrene b. polytetrafluoroethylene c. polydimethylsiloxane d. nylon 6,10
Draw the structure of the repeat unit of the polymer that results when this diamine and...
Draw the structure of the repeat unit of the polymer that
results when this diamine and this diacid are heated together:
Polymer Synthesis Question 1 Draw the structure of the repeat unit of the polymer that results when this diamine and this diacid are heated together: 1 pt 1 pt 1 pt 1 pt 1 pt Question 2 diamine diacid Question 3 Question 4 но он Question 5 Question 6 You do not have to consider stereochemistry. You do not...
A Draw the expected structure of the polymer repeat unit given the following monomer. B. Indicate...
A Draw the expected structure of the polymer repeat unit given the following monomer. B. Indicate whether free radical or condensation polymerization would be most appropriate. HH III HO-CR HO-CH2 CH2-CH2-OH
1. Compute the molecular weight of a single, (1), polystyrene (PS) repeat unit. 2. Compute the...
1. Compute the molecular weight of a single, (1), polystyrene (PS) repeat unit. 2. Compute the degree of polymerization for a polystyrene (PS) polymer with a number-average molecular weight of 279,799 g/mol. 3. What is the number-average molecular weight of a PC polymer that features a degree of polymerization of 1,890 ? 4. An alternating poly(ethylene-propylene) copolymer has a molecular weight of 294,419 g/mol. How many ethylene repeat units are in one average length chain of this polymer ? 5....
14. (a) Compute the repeat unit molecular weight of polystyrene and the number-average (b) Viscoelastic creep...
14. (a) Compute the repeat unit molecular weight of polystyrene and the number-average (b) Viscoelastic creep of some polymer materials can be modelled using a spring and dashpot molecular weight of the material if the degree of polymerisation is 25,000. in parallel configuration as shown in the following figure. Derive the mathematical expression for the strain as a function of time. 凹η (6+6 marks
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)...
Question 2: Polymer Structures. Utilizing the polymeric structure example below, please fill out the blanks l...
Question 2: Polymer Structures. Utilizing the polymeric structure example below, please fill out the blanks l through vil below for the given polymer structure. Use H = 1 g/mol, C = 12 g/mol, N = 14 g/mol. o = 16 g/mol, Na-23 g/mol, CI = 35 g/mol as their respective atomic weights. In a test, if you show your work (rationale), you may receive partial points. Name l. Repeat Unit Formula | C--H [ ]-[ L- H. Repeat Units Mol....
1) (25 points) The molecular weight of a polymer can be determined from its viscosity by the following relationship where [n] is the intrinsic viscosity of the polymer M, is the viscosity averaged mo...
1) (25 points) The molecular weight of a polymer can be determined from its viscosity by the following relationship where [n] is the intrinsic viscosity of the polymer M, is the viscosity averaged molecular weight, and K and a are constants specific for the polymer. The intrinsic viscosity is determined experimentally be determining the efflux time, or the time it takes for the polymer solution to flow between two etched lines in a capillary viscometer, at several different concentrations of...
Molecular Structure and Physical Properties Consider the following statements and determine which are true and which...
Molecular Structure and Physical Properties Consider the following statements and determine which are true and which are false. true false NO3- has three resonance Lewis structures. true false SeF4 is a polar molecule. true false KrF4 has a see-saw structure. true false The formal oxidation state of an atom in a molecule (or molecular ion) can be calculated as: (the number of valence electrons on a free atom) minus (half the number of electrons in bonds to that atom) minus (the number of unshared...
Molecular Structure and Physical Properties Consider the following statements and determine which are true and which...
Molecular Structure and Physical Properties Consider the following statements and determine which are true and which are false. Bond angles for IF6+ are 60 °. KrF4 has a see-saw structure. Silane (SiH4) is a polar molecule. NO3' has only two resonance Lewis structures. SeF4 is a polar molecule. The formal oxidation state of an atom in a molecule (or molecular ion) can be calculated as: (the number of valence electrons on a free atom) minus (half the number of electrons...
1 Polymer Structure (4 pts) Sketch the repeat unit and determine the repeat unit molecular weight for the following polymers: a. polystyrene b. polytetrafluoroethylene c. polydimethylsiloxane d. nylon 6,10
Draw the structure of the repeat unit of the polymer that
results when this diamine and this diacid are heated together:
Polymer Synthesis Question 1 Draw the structure of the repeat unit of the polymer that results when this diamine and this diacid are heated together: 1 pt 1 pt 1 pt 1 pt 1 pt Question 2 diamine diacid Question 3 Question 4 но он Question 5 Question 6 You do not have to consider stereochemistry. You do not...
A Draw the expected structure of the polymer repeat unit given the following monomer. B. Indicate whether free radical or condensation polymerization would be most appropriate. HH III HO-CR HO-CH2 CH2-CH2-OH
14. (a) Compute the repeat unit molecular weight of polystyrene and the number-average (b) Viscoelastic creep of some polymer materials can be modelled using a spring and dashpot molecular weight of the material if the degree of polymerisation is 25,000. in parallel configuration as shown in the following figure. Derive the mathematical expression for the strain as a function of time. 凹η (6+6 marks
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)...
Question 2: Polymer Structures. Utilizing the polymeric structure example below, please fill out the blanks l through vil below for the given polymer structure. Use H = 1 g/mol, C = 12 g/mol, N = 14 g/mol. o = 16 g/mol, Na-23 g/mol, CI = 35 g/mol as their respective atomic weights. In a test, if you show your work (rationale), you may receive partial points. Name l. Repeat Unit Formula | C--H [ ]-[ L- H. Repeat Units Mol....
1) (25 points) The molecular weight of a polymer can be determined from its viscosity by the following relationship where [n] is the intrinsic viscosity of the polymer M, is the viscosity averaged molecular weight, and K and a are constants specific for the polymer. The intrinsic viscosity is determined experimentally be determining the efflux time, or the time it takes for the polymer solution to flow between two etched lines in a capillary viscometer, at several different concentrations of...
Molecular Structure and Physical Properties Consider the following statements and determine which are true and which are false. Bond angles for IF6+ are 60 °. KrF4 has a see-saw structure. Silane (SiH4) is a polar molecule. NO3' has only two resonance Lewis structures. SeF4 is a polar molecule. The formal oxidation state of an atom in a molecule (or molecular ion) can be calculated as: (the number of valence electrons on a free atom) minus (half the number of electrons...
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