An unknown polymer sample was found to have the following molecular weight distribution:Molecular weight rangexi8,000 -20,0000.0520,000 - 32,0000.1532,000 44,0000.2144,000 56,0000.2856,000 -68,0000.1868,000 - 80,0000.1080,000 - 92,0000.03Having a DP=763, which of the following common polymers is this sample?Select one:wi0.020.080.170.290.230.160.05a. Polymethylmethacrylate with a monomer molecular weight of 100.121 g/molb. Polyvinyl chloride with a monomer molecular weight of 62.498 g/molc. Polycarbonate with a monomer molecular weight of 61.0168 g/mold. Polypropylene with a monomer molecular weight of 42.08 g/mole. Polystyrene with a monomer molecular weight of 104.15 g/mol

Given:Molecular weight distribution tableDP = 763

Answered: An unknown polymer sample was found to…

Engineering

Mechanical Engineering

An unknown polymer sample was found to have the following molecular weight distribution:

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Related questions

Q: The rule of mixture (ROM) for composites may be used to calculate some of the physical properties of…

A: The Rule of Mixtures (ROM) is a concept that is used in the field of composite materials. This…

Q: TQ8: The hull of the space shuttle consists of ceramic tiles bonded to an aluminium skin. Discuss…

A: TQ11: You would like to be able to identify different materials without resorting to chemical…

Q: Using the aid of a diagram, describe the behaviour stress vs strain of a brittle polymer. Give one…

A: Polymer is known for its inherent toughness and resistance to fracture .mechanical properties of…

Q: 3. The geometry of the reinforcing phase in a composite greatly determines the overall properties.…

Q: (B) Composite consists of polyester as a matrix reinforced by glass fiber. If the composite have…

A: Write the given values along with the suitable variables.

Q: For a continuous and aligned fiber-reinforced composite, the modulus of elasticity in the transverse…

A: Given Data: Modulus of elasticity of matrix phase, Em=3.78 GPa

Q: Calculate how many billion years it will take to build 1 mole of a molecule with a formula of…

Q: (iv) Thermoplastic polymers such as polyethylene can be melted relatively easily, because: a. they…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

Q: Consider a carbon fibre composite, made using an epoxy resin. The modulus of the fibres Efis 210…

A: Composite Materials - These materials have thee micro-structure designed in terms of their…

Q: Temperature (°C) 1. 2. What are the two characteristics of the component ions in crystalline ceramic…

A: 9. If a sample of austenite is rapidly cooled from 800°C to 600°C, estimate how much time it would…

Q: The density of an unknown polymer is 1.875 g/cm³ with a % crystallinity of 50%. If the density when…

A: To find: The density of unknown polymer when totally crystalline and density when the crystallinity…

Q: An unknown polymer sample was found to have the following molecular weight distribution: Molecular…

A: The DOP tells us the number of monomer units in the given polymerization reaction.

Q: We are given a sample of polypropylene with the following composition. What is the number average…

Q: Calculate the softening temperature for soda lime silica glass at which the viscosity is 10^1 pa.s…

A: The viscosity is .The activation energy is The temperature of activation energy The viscosity at…

Q: An engineering ceramic has a flexure strength that obeys Weibull statistics with m = 10. If the…

A: Given:the value of the flexure strength is the survival probability is the probability at 1 is the…

Q: Using the ‘rule of mixtures’ calculate the modulus and strength, in the fiber direction and…

Q: The modulus of elasticity for a ceramic material having 4.1 vol% porosity is 323 GPa. (a) Calculate…

Q: Calculate the percentage of crystallinity of the following polymer. Density crystallinity is 0.998,…

A: The percentage of crystallinity. Given: The density crystallinity is ρc=0.998 g/cm3. The density of…

Q: tive glass transition temperature and melting temperature. Group of answer choices

Q: For a given polymer, the activation energy for the stress relaxation was measured to be 59kj/mol. If…

A: Given:Activation energy for the stress relaxation,Q = 59 kJ/mol or 59000 J/molInitial temperature,…

Q: 3. An engineering ceramic has a flexure strength that obeys Weibull statistics with m = 15. If the…

A: Data given- m = 15 Pf1 = 0.3 Ps1 = 1-0.3 = 0.7 Ps2 = 0.4

Q: A new composite material is to be manufactured from carbon fibre and resin component materials. The…

A: Given data: EC=8.25 GPaEf=142 GPaER=5.42 GPa Need to determine the relative volume fraction of…

Q: Nylon 6,6 is a thermoplastic polymer with high mechanical strength, high resistance to chemical…

A: Nylon 6,6 - Thermoplastic polymer L= 1 m Do = 8cm Thickness (t) = 2mm The crystallinity of the…

Q: We make a composite with an Al matrix (E = 70 GPa) and SiC particles (E,= 430 GPa). We add enough…

Q: As the temperature of an amorphous polymer decreases from the liquid state, the polymer changes from…

A: Freezing point: The temperature at material in liquid state becomes solid on cooling it, is known…

Q: What is an important consequence of time-temperature equivalence for testing of polymer…

A: Time-temperature superposition is a method that has become important in the field of polymers to…

Q: Determine the Miller- Bravais indices

A: The procedure to find the Miller indices is as follows:Translate the given plane as to either…

Q: The tensile modulus of a given polymer increases as its crystallinity increases"

Q: The 3D printing approach shown below is fused deposition modelling (FDM), where feedstock polymer is…

Q: A continuous 20meter long cable tray must be installed in an aircraft compartment. The tray must…

A: The trays are made of steel, aluminium and resin reinforced plastic. Resin reinforced plastic trays…

Question

An unknown polymer sample was found to have the following molecular weight distribution:
Molecular weight range
xi
8,000 -20,000
0.05
20,000 - 32,000
0.15
32,000 44,000
0.21
44,000 56,000
0.28
56,000 -68,000
0.18
68,000 - 80,000
0.10
80,000 - 92,000
0.03
Having a DP=763, which of the following common polymers is this sample?
Select one:
wi
0.02
0.08
0.17
0.29
0.23
0.16
0.05
a. Polymethylmethacrylate with a monomer molecular weight of 100.121 g/mol
b. Polyvinyl chloride with a monomer molecular weight of 62.498 g/mol
c. Polycarbonate with a monomer molecular weight of 61.0168 g/mol
d. Polypropylene with a monomer molecular weight of 42.08 g/mol
e. Polystyrene with a monomer molecular weight of 104.15 g/mol

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Polymer to be determined:

VIEW

Step 2: Explanation for selecting the polymer:

VIEW

Solution

VIEW

Step by step

Solved in 3 steps with 4 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

Using the Virtual Materials Science and Engineering (VMSE) tensile testing data, find the following for: Titanium, Tempered steel, Almanium, Nylon, and HDPE (a) Determine the yield strength using 0.2% offset method? (b) Determine the yield strain? (c) Find the young's modulus? (d) Determine the tensile strength? (e) Find ductility in percent of elongation?
1. For a load applied in the direction of fiber, assuming equal deformation in the components, the two phases are viewed as being defomed in parallel. Derive an equation relating the elastic modulus of the composites. F
1) Assuming that the moduli and volume fractions of fiber and matrix materials are known, obtain the rule of mixtures in order to calculate the longitudinal Young's (elasticity) modulus of a unidirectional lamina by use of iso-strain assumption
Hello Sir.Good Evening I have a question in my home work related materials polimer lesson. The following below is my question. Please advice, thank you so much. "Explain how the relationship between temperature and the tensile strength of polymers ?"
a dry, 2.4 den, mature wool fiber has reached its maximum tenacity value. How many grams would it take to rupture such fiber when dry?
Please written by hand
I need help on this
(1) 2% ThO₂ is added to Ni. The density of ThO₂ is 9.69 g/cm³. Each ThO₂ particle has a diameter of 100 nm. How may particles can be found per m³ in the composite.
Derive the viscoelastic equation for the four-element model.
Answer whats in the image, please and thank you
For each of the following - choose the best response For Traditional Vs Advanced Ceramics Group of answer choices Coarser structure Less expensive Made from natural raw materials Higher strength Higher fracture toughness
For a given polymer, the activation energy for stress relaxation was measured to be 10 kJ/mol. If the stress relaxation time for this polymer at room temperature is 3,600 s, what would be the relaxation time at 100 ◦C?