Eluent gel permeation chromatography : a new method for study of the micellisation of block copolymers in solution

1992 ◽  
Vol 88 (10) ◽  
pp. 1437 ◽  
Author(s):  
Qingguo Wang ◽  
Colin Price ◽  
Colin Booth
Keyword(s):  
Block Copolymers ◽  
Gel Permeation Chromatography ◽  
New Method ◽  
Gel Permeation

Redox-active polymer-nanoparticle hybrid materials

2000 ◽  
Vol 72 (1-2) ◽  
pp. 67-72 ◽  
Author(s):  
Keith J. Watson ◽  
Jin Zhu ◽  
SonBinh T. Nguyen ◽  
Chad A. Mirkin
Keyword(s):  
Gold Nanoparticles ◽  
Block Copolymers ◽  
Hybrid Materials ◽  
Ring Opening ◽  
Gel Permeation Chromatography ◽  
Polymer Chains ◽  
Electrochemical Studies ◽  
Redox Active ◽  
Gel Permeation ◽  
Current Rectification

Ring-opening metathesis polymerization was used to modify organic soluble gold nanoparticles with redox-active polymers. A gel-permeation chromatography study revealed that each nanoparticle is modified with approximately 11 polymer chains. Electrochemical studies of nanoparticles modified with block copolymers of two different redox-active groups revealed that each monomer is electrochemically accessible, while no current rectification was observed.

Study of block copolymers by gel-permeation chromatography

1982 ◽  
Vol 24 (6) ◽  
pp. 1512-1517 ◽  
Author(s):  
V.V. Nesterov ◽  
V.D. Krasikov ◽  
Ye.V. Chubarova ◽  
B.G. Belen'kii
Keyword(s):  
Block Copolymers ◽  
Gel Permeation Chromatography ◽  
Gel Permeation

Investigation of polystyrene-polybutadiene block-copolymers by gel-permeation chromatography and by ozonolysis

1983 ◽  
Vol 25 (12) ◽  
pp. 2986-2995 ◽  
Author(s):  
V.V. Nesterov ◽  
V.D. Krasikov ◽  
V.N. Zgonnik ◽  
Ye.Yu. Melenevskaya ◽  
I.V. Kosheleva ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Gel Permeation Chromatography ◽  
Gel Permeation

Synthesis of 4-vinylbiphenyl–isoprene block copolymers and their characterization by gel-permeation chromatography

1969 ◽  
Vol 7 (1) ◽  
pp. 73-81 ◽  
Author(s):  
J. Heller ◽  
J. F. Schimscheimer ◽  
R. A. Pasternak ◽  
C. B. Kingsley ◽  
J. Moacanin
Keyword(s):  
Block Copolymers ◽  
Gel Permeation Chromatography ◽  
Gel Permeation

A Study of Structure Parameters of Block Copolymers Polystyrene-Polyethylene Oxides

2011 ◽  
Vol 383-390 ◽  
pp. 2714-2718
Author(s):  
You Qing Jiang ◽  
Yun Bo Zhang ◽  
Zhi Yong Lin ◽  
Jun Chen ◽  
Ming Ming Yu
Keyword(s):  
Block Copolymer ◽  
Block Copolymers ◽  
Polyethylene Oxide ◽  
Gel Permeation Chromatography ◽  
Structure Parameters ◽  
Polyethylene Oxides ◽  
Gel Permeation

Block copolymer consists of two and more than two of different polymer links. Epoxy terminated polydtyrene (Ps-ep) active polymer was used to polymerize polystyrene (Pst)-polyethylene oxide (Peo) block copolymer P (st-b-eo). There were the mixtures of (Ps-ep), (Pst), (Peo) and P (st-b-eo) in the polymerization. It is necessary to separate (Ps-ep), (Pst), (Peo) and P (st-b-eo) in the mixtures in order to determine structure parameters of P (st-b-eo) block copolymers. We can know for certain their types of ABA, BAB and AB of polystyrene (A)-Polyethylene oxides (B) block copolymers with analysis of gel permeation chromatography (GPC).

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.

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