degree of polymerization problems

PDF	Chemistry of Polymer Solve the following problems with the aid of the general Carothers equation: Calculate the degree of polymerization and the extent of reaction Write the

PDF	Chapter 14 polymer structures problem solutions degree of polymerization is 477 which of the polymers in Table 14 3 is this material? It is necessary to compute m in Equation 14 6 as m = M n DP = 47720

PDF	CHAPTER 7 POLYMERIC MATERIALS Solutions to Calculation Problems What is its average degree of polymerization? To assess the average degree of polymerization (DP) the mass of the

What is the molecular weight of polypropylene with a degree of polymerization of 3 10 4?
Now, we can calculate the molecular weight of the entire polypropylene chain with a degree of polymerization of 3 x 10^4: Molecular weight of PP = (Molecular weight of a single monomer unit) * (Degree of polymerization) Molecular weight of PP = 42.09 g/mol * 3 x 10^4 Molecular weight of PP = 1,262,700 g/mol So, the
How do you calculate the degree of polymerization?
Divide the molecular mass of the polymer by the molecular weight of the monomer.
For example, if the molecular mass of tetrafluoroethylene is 1,20,000, then its degree of polymerization is calculated as 1,20,000 / 100 = 1,200.
Therefore, the degree of polymerization is 1,200.
What are the factors that affect degree of polymerization?
Long reaction times increase the polymer yield, but have little effect on the average molecular weight.
The degree of polymerization is related to the kinetic chain length, which is the average number of monomer molecules polymerized per chain initiated.
The viscosity-average degree of polymerization P̄_η, which can be obtained exactly by experiment, is related to the number average by P̄_η = P̄_n(1 + F).
Here F is given as a function of experimental data: P̄_η and the overall rate of polymerization.

PDF	Chap 15 Solns This problem asks if it is possible to have a poly(methyl methacrylate) homopolymer with the given molecular weight data and a degree of polymerization of

PDF	Problem 14.5 a. To Find: (a) The number-average molecular weight Problem 14.5 a. To Find: (c) The degree of polymerization ... DP = M n m. = 33040 g/mol. 42.08 g/mol. = 785. (a) 33040 g/mol. (b) 36240.

PDF	Solutions for Problem Set 2 Draw the repeal unil structure of the polymer. Calculate the degree of polymerization and the extent of reaction. Calculaic whal the degree of polymerization

PDF	Chap 15 Solns degree of polymerization of 2210 we are to determine one of the repeat unit types if the other type is Since DP = 1500 (as stated in the problem)

PDF	Chapter 14 Polymer Structures ? ???? ???? ?? molecular weights and degree of polymerization for a specified polymer. ... Weight Computations in Example Problem 14.1. Molecular Weight.

PDF	Flory exponents for generalized polymer problems ?? ??? ???? ?? polymer on the degree of polymerization N. In particular we treat linear and branched polymers in dilute good.

PDF	ACCURACY OF FURAN ANALYSIS IN ESTIMATING THE DEGREE 2.5 Correlation between Furanic analysis and Degree of Polymerization … The problem with this method is that it is invasive and every utility wants to ...

PDF	8 theoretical problems 2 practical problems 8.4 Calculate degree of polymerization (DP) of the obtained polymer. Page 39. THE 39TH INTERNATIONAL CHEMISTRY OLYMPIAD 2007. THE COMPETITION PROBLEMS FROM THE

PDF	Impact of Degree of Polymerization of Fiber on Viscose Fiber Strength ?? ????? ?????? ???? ?? work and also was there with ideas and solutions to problems ... fibers from wood

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PDF	Problem 145 a To Find: (a) The number-average molecular weight Problem 14 5 a To Find: (c) The degree of polymerization for the given The two repeat units in this co-polymer are acrylonitrile and butadiene From Table

PDF	Solutions for Problem Set 2 It would only take 0 5 hours to reach a number average degree of polymerization of 300 (d) In the self catalyzed reaction, catalyst is lost as monomer is consumed,

PDF	Chapter 5 This problem asks if it is possible to have a poly(methyl methacrylate) homopolymer with the given molecular weight data and a degree of polymerization of 530

PDF	Polymer Structures Chapter 4 - nanoHUB ISSUES TO ADDRESS Molecular Weight and Degree of Polymerization? A Calculate the number and weight average degrees of polymerization

PDF	R71 Polymerization The number-average degree of polymerization, , is the average number of structural units A ) reacts slowly to form R1 (such is the case in Problem CDP7- PB)

PDF	Polymer Chemistry - NPTEL the original polymer sample that was dissolved at the beginning 3 What is the no average degree of polymerization (DP) of each of the following polymers

PDF	Exercise 1: Polymer chains Problem 1 Problem 2 - ETH Zürich chains with degree of polymerization 103; and 10 chains with degree of polymerization 104 Each monomer has a molar mass mmon = 100 g mol−1

PDF	Chap 15 Solns This problem asks if it is possible to have a poly(methyl methacrylate) homopolymer with the given molecular weight data and a degree of polymerization of 527

PDF	Step Growth Polymerization - MIT OpenCourseWare 10 569 Synthesis of Polymers Prof from diol Degree of polymerization Control of MW How to control MW? a) Control π (conversion) Issue: HO C OH O

PDF	Step Growth Polymerization - MIT OpenCourseWare 10 569 Synthesis of Polymers Prof from diol Degree of polymerization Control of MW How to control MW? a) Control π (conversion) Issue: HO C OH O