Effect of Molecular Weight Distribution on Microphase-Separated Structures from Block Copolymers

2005 ◽  
Vol 38 (10) ◽  
pp. 4371-4376 ◽  
Author(s):  
Atsushi Noro ◽  
Donghyun Cho ◽  
Atsushi Takano ◽  
Yushu Matsushita
Keyword(s):  
Molecular Weight ◽  
Block Copolymers ◽  
Molecular Weight Distribution ◽  
Weight Distribution

The effect of heterogeneity in composition on the determination of molecular weight distribution of block copolymers by gel permeation chromatography

1969 ◽  
Vol 22 (3) ◽  
pp. 543 ◽  
Author(s):  
JR Urwin ◽  
DN Cramond
Keyword(s):  
Molecular Weight ◽  
Light Scattering ◽  
Block Copolymers ◽  
Molecular Weight Distribution ◽  
Weight Distribution ◽  
Gel Permeation Chromatography ◽  
Scattering Data ◽  
Gel Permeation

The molecular weight of samples of block copolymers of poly(isoprene : styrene) determined by gel permeation chromatography (g.p.c.) are found to deviate from the values obtained by light scattering and osmometry. The extent of the deviation depends on composition, and comparision of (g.p.c.) values with osmometry (MN) can be interpreted if account is taken of the effect of heterogeneity. The drift in composition with molecular weight calculated from light scattering data can be used to predict the direction of the deviation, at least qualitatively.

Effect of the molecular weight distribution of the hydrophobic block on the formation of inverse cubic mesophases of block copolymers with a discrete branched hydrophilic block

2019 ◽  
Vol 10 (42) ◽  
pp. 5805-5813 ◽  
Author(s):  
Sungmin Ha ◽  
Kyoung Taek Kim
Keyword(s):  
Molecular Weight ◽  
Block Copolymers ◽  
Molecular Weight Distribution ◽  
Weight Distribution ◽  
Self Assembled

The molecular weight distribution of the hydrophobic block of block copolymers directly influences their self-assembled structures in solution.

Composition and molecular weight distribution of block copolymers

1980 ◽  
Vol 17 (2) ◽  
pp. 211-228 ◽  
Author(s):  
T. Tanaka ◽  
M. Omoto ◽  
N. Donkai ◽  
H. Inagaki
Keyword(s):  
Molecular Weight ◽  
Block Copolymers ◽  
Molecular Weight Distribution ◽  
Weight Distribution

Pd-initiated controlled polymerization of diazoacetates with a bulky substituent: synthesis of well-defined homopolymers and block copolymers with narrow molecular weight distribution from cyclophosphazene-containing diazoacetates

2015 ◽  
Vol 6 (26) ◽  
pp. 4709-4714 ◽  
Author(s):  
Hiroaki Shimomoto ◽  
Hironori Asano ◽  
Tomomichi Itoh ◽  
Eiji Ihara
Keyword(s):  
Molecular Weight ◽  
Block Copolymers ◽  
Molecular Weight Distribution ◽  
Weight Distribution ◽  
Bulky Substituent ◽  
Narrow Molecular Weight Distribution ◽  
Controlled Polymerization

Pd-initiated polymerization of cyclophosphazene-containing diazoacetates proceeded in a controlled manner.

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