Interpretation of long-chain structure from dilute solution properties of ultrahigh molecular weight polymers

1992 ◽  
Vol 27 (5) ◽  
pp. 571-575 ◽  
Author(s):  
Maria Bercea ◽  
Silvia Ioan ◽  
Bogdan C. Simionescu ◽  
Cristofor I. Simionescu
Keyword(s):  
Molecular Weight ◽  
Chain Structure ◽  
Solution Properties ◽  
Dilute Solution ◽  
Dilute Solution Properties ◽  
Ultrahigh Molecular Weight ◽  
Long Chain

Synthesis and Properties of Regular Star Polybutadienes with 32 Arms

1992 ◽  
Vol 65 (2) ◽  
pp. 303-314 ◽  
Author(s):  
L-L. Zhou ◽  
N. Hadjichristidis ◽  
P. M. Toporowski ◽  
J. Roovers
Keyword(s):  
Molecular Weight ◽  
Coupling Agent ◽  
Hard Sphere ◽  
Star Polymers ◽  
Radius Of Gyration ◽  
Linear Polymers ◽  
Solution Properties ◽  
Mean Square ◽  
Dilute Solution ◽  
Dilute Solution Properties

Abstract A dendrimer carbosilane containing 32 Si—Cl bonds in the perimeter has been prepared and has been used as a coupling agent to prepare 32-arm star polybutadienes. The dilute-solution properties 〈RG2〉, A2, [η], and D0 have been measured in one good solvent and in one ¸ -solvent. The dimensions of the 32-arm star polymers are compared with those of linear polymers at constant molecular weight. It is shown that the 32-arm star polybutadiene has the characteristic properties of a hard-sphere molecule in dilute solution. The equivalent hard-sphere radii calculated from A2, D0 and [η] are identical and 1.29 times larger than the root mean-square radius of gyration. The Daoud—Cotton scaling model for stars is also tested.

Solution properties of ultrahigh molecular weight polymers. 5. Conformational changes of butyl methacrylate-styrene copolymers in dilute solution

1985 ◽  
Vol 18 (10) ◽  
pp. 1995-1999 ◽  
Author(s):  
Cristofor I. Simionescu ◽  
Bogdan C. Simionescu ◽  
Silvia Ioan
Keyword(s):  
Molecular Weight ◽  
Conformational Changes ◽  
Butyl Methacrylate ◽  
Solution Properties ◽  
Dilute Solution ◽  
Styrene Copolymers ◽  
Ultrahigh Molecular Weight

scholarly journals Effect of Hard Segment Molecular Weight on Dilute Solution Properties of Ether Based Thermoplastic Polyurethanes

2013 ◽  
Vol 1 (3) ◽  
pp. 123-133
Author(s):  
K. W. Lem ◽  
J. R. Haw ◽  
S. Curran ◽  
S. E. Sund ◽  
C. Brumlik ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Hard Segment ◽  
Solution Properties ◽  
Dilute Solution ◽  
Thermoplastic Polyurethanes ◽  
Dilute Solution Properties

Dilute solution properties of poly[N-(n-octadecyl)maleimide]. 4. Cloud points, θ solvents, and molecular weight dependence of intrinsic viscosity in n-alkyl alcohols as θ solvents

1983 ◽  
Vol 16 (11) ◽  
pp. 1707-1714 ◽  
Author(s):  
Jose M. Barrales-Rienda ◽  
Carmen Romero Galicia ◽  
Juan J. Freire ◽  
Arturo Horta
Keyword(s):  
Molecular Weight ◽  
Intrinsic Viscosity ◽  
Solution Properties ◽  
Dilute Solution ◽  
Molecular Weight Dependence ◽  
Dilute Solution Properties ◽  
Cloud Points

Dilute solution properties of poly[N-(n-octadecyl)maleimide]. 2. Molecular weight dependence of the intrinsic viscosity in a few good solvents

1983 ◽  
Vol 16 (6) ◽  
pp. 940-945 ◽  
Author(s):  
J. M. Barrales-Rienda ◽  
C. Romero Galicia ◽  
Juan J. Freire ◽  
Arturo Horta
Keyword(s):  
Molecular Weight ◽  
Intrinsic Viscosity ◽  
Solution Properties ◽  
Dilute Solution ◽  
Molecular Weight Dependence ◽  
Dilute Solution Properties
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