The physical properties of rigid chain polymer molecules in solution

Tsvetkov, V.N.

doi:10.1016/0032-3950(74)90329-3

Search citation statements

Order By: Relevance

Paper Sections

Select...

Rotational Diffusion1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1975

2023

Publication Types

Select...

Article6

Relationship

Self Cite0

Independent6

Authors

Journals

Cited by 36 publications

(1 citation statement)

References 84 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This approach was successfully utilized in many papers devoted to dendrimers. [46][47][48][71][72][73] For the model of an impenetrable sphere of radius R h in a viscous medium, the following equation can be used: [74][75][76]…”

Section: Rotational Diffusionmentioning

confidence: 99%

Hydrodynamic radius of dendrimers in solvents

Khusnutdinova,

Markelov

2023

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

show abstract

Section: Rotational Diffusionmentioning

confidence: 99%

Hydrodynamic radius of dendrimers in solvents

Khusnutdinova,

Markelov

2023

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

show abstract

Conformation de polyamides aromatiques en solution diluée dans l'acide sulfurique concentré, 1. Étude par viscosité et diffusion de la lumière

Arpin

Strazielle

1976

Makromol. Chem.

View full text Add to dashboard Cite

Properties of the ladder polymer cis‐syndiotactic poly(phenylsilsesquioxane) in solution

Helminiak

Berry

1978

J. polym. sci., C Polym. symp.

View full text Add to dashboard Cite

Studies on the properties of the double‐chain ladder polymer of cis‐syndiotactic poly(phenylsilsesquioxane) (PPSQ) in dilute and concentrated solutions are reported. Data on the intrinsic viscosity [η], the second virial coefficient A2, and the mean‐square radius of gyration 〈s2〉 as functions of molecular weight M, temperature, and solvent lead to the conclusion that the conformation of PPSQ can be modeled with a wormlike chain model with a persistence length ρ of 74 Å. These data cannot be used to assess the extent of intramolecular inflexibility, e.g., resistance to rotational isomerization, of PPSQ. For concentrated solutions (0.05 ⩽ c ⩽ 0.20 g/ml) the limiting viscosity ⩾0 at zero shear rate is proportional to cM for cM < ⩾2Mc and to (cM)3,4 for cM ⩾ ρ2Mc, where Mc = 9120. The product Xc (〈s20/M) × ρ2Mc/ma is equal to 356 × 10−17 for PPSQ, close to the value 400 × 10−17 typical of single‐chain polymers. The reduced flow curve ηK/ϵ0 versus ηCK for the viscosity ϵK as a function of shear rate K is not far different from that for single‐chain polymers—here, the time constant ηC is equal to η0R0 with R0 the limits of the recovery function RK, at small K(R0 is often denoted Je0). The values of ηc are intermediate to ηc for a flexible single‐chain polymer and the relaxation time ηR for rotatory diffusion of a rigid coil. Plots of RK versus K superpose with plots of the transient recovery R0(ϑ) with ϑ = K−1 over the limited range ηCK < 1 where ϑ is the recovery time (R0(ϑ) goes to R0 for large ϑ), similar to behavior found with solutions of single‐chain polymers.

show abstract

The physical properties of rigid chain polymer molecules in solution

Cited by 36 publications

References 84 publications

Hydrodynamic radius of dendrimers in solvents

Hydrodynamic radius of dendrimers in solvents

Conformation de polyamides aromatiques en solution diluée dans l'acide sulfurique concentré, 1. Étude par viscosité et diffusion de la lumière

Properties of the ladder polymer cis‐syndiotactic poly(phenylsilsesquioxane) in solution

Contact Info

Product

Resources

About