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What is the significance of polymer average molecular weight in determining the properties and performance of polymer materials?
The average molecular weight of a polymer is important in determining its properties and performance. Higher molecular weight polymers tend to have better mechanical properties, such as strength and toughness, as well as improved thermal stability. On the other hand, lower molecular weight polymers may have better processability and flexibility. Overall, the average molecular weight of a polymer plays a crucial role in its overall performance and application suitability.
What is the average molecular weight of a polymer?
Simply looking at the expressions that derive weight average and number average one can see that the weight average is a second order expression where number average is a first order. To put it more simply: weight averaged molecular weight emphasizes heavy molecules more than light ones; number averaged molecular weight says a molecule is a molecule and counts them both equally.
What is the significance of the average molecular weight of a polymer in determining its properties and performance?
The average molecular weight of a polymer is important in determining its properties and performance because it affects characteristics such as strength, flexibility, and durability. Higher molecular weight polymers tend to have better mechanical properties and are more resistant to degradation, while lower molecular weight polymers may be more flexible but less strong. Overall, the molecular weight of a polymer plays a key role in determining how it will behave in various applications.
What is the weight average molecular weight of the compound in question?
The weight average molecular weight of the compound is the average of the molecular weights of all the molecules in the sample, weighted by their relative abundance.
Number-average molecular weight of a polypropylene is 1000000 gmol Compute the number-average degree of polymerization?
Number-average degree of polymerization = (Number-average molecular weight of polymer) / (Molecular weight of repeating unit) For polypropylene, the molecular weight of the repeating unit is 42 g/mol. Thus, degree of polymerization = 1000000 g/mol / 42 g/mol = 23809.52.
What is the significance of polymer average molecular weight in determining the properties and performance of polymer materials?
The average molecular weight of a polymer is important in determining its properties and performance. Higher molecular weight polymers tend to have better mechanical properties, such as strength and toughness, as well as improved thermal stability. On the other hand, lower molecular weight polymers may have better processability and flexibility. Overall, the average molecular weight of a polymer plays a crucial role in its overall performance and application suitability.
What is the average molecular weight of a polymer?
Simply looking at the expressions that derive weight average and number average one can see that the weight average is a second order expression where number average is a first order. To put it more simply: weight averaged molecular weight emphasizes heavy molecules more than light ones; number averaged molecular weight says a molecule is a molecule and counts them both equally.
What is the significance of the average molecular weight of a polymer in determining its properties and performance?
The average molecular weight of a polymer is important in determining its properties and performance because it affects characteristics such as strength, flexibility, and durability. Higher molecular weight polymers tend to have better mechanical properties and are more resistant to degradation, while lower molecular weight polymers may be more flexible but less strong. Overall, the molecular weight of a polymer plays a key role in determining how it will behave in various applications.
What is the weight average molecular weight of the compound in question?
The weight average molecular weight of the compound is the average of the molecular weights of all the molecules in the sample, weighted by their relative abundance.
Number-average molecular weight of a polypropylene is 1000000 gmol Compute the number-average degree of polymerization?
Number-average degree of polymerization = (Number-average molecular weight of polymer) / (Molecular weight of repeating unit) For polypropylene, the molecular weight of the repeating unit is 42 g/mol. Thus, degree of polymerization = 1000000 g/mol / 42 g/mol = 23809.52.
What is the average molecular weight of the compound in question?
The average molecular weight of the compound is the sum of the atomic weights of all the atoms in the molecule, divided by the number of atoms.
What is Polydispersity?
In organic chemistry, the polydispersity index (PDI), is a measure of the distribution of molecular mass in a given polymer sample. The PDI calculated is the weight average molecular weight divided by the number average molecular weight. It indicates the distribution of individual molecular masses in a batch of polymers. The PDI has a value always greater than 1, but as the polymer chains approach uniform chain length, the PDI approaches unity (1). For some natural polymers PDI is almost taken as unity. The PDI from polymerization is often denoted as: \ PDI = M_w/M_n
What is a molecule of low molecular weight capable of reacting with identical or different molecules of low molecular weight to form a polymer?
This is a catalyst.
Why the tendency of a polymer to crystallize decreases with increasing molecular weight?
The tendency of a polymer to crystallize decreases with increasing molecular weight because as the chains become longer it is more difficult for all regions along adjacent chains to align so as to produce the ordered atomic array.
What is the average molecular weight of PVC?
62.5 * length of chain ( num of moluclar of vcm )!! think that
What is the molecular weight of Chlorinated polyvinyl chloride resin?
Molecular weight of a polymer depends rather on it's degree of polymerization (chain length) than on it's composition. Typical polymer molecular weights are in the range of 1000 to 1000 000 and beyond.
What is the average molecular weight of a nucleotide?
The average molecular weight of a nucleotide is around 330 daltons.
