Preparative and analytical aspects of polymer fractionation

2006 ◽  
pp. 1-69 ◽  
Author(s):  
R. Koningsveld
Keyword(s):  
Polymer Fractionation

Polymer fractionation by column methods

1976 ◽  
Vol 41 (9) ◽  
pp. 2510-2518 ◽  
Author(s):  
J. Poláček ◽  
V. Boháčková ◽  
Z. Pokorná ◽  
E. Sinkulová
Keyword(s):  
Polymer Fractionation

Polymer fractionation by column methods

1961 ◽  
Vol 33 (13) ◽  
pp. 1829-1831 ◽  
Author(s):  
N. S. Schneider
Keyword(s):  
Polymer Fractionation

A modified column method of polymer fractionation

1978 ◽  
Vol 256 (7) ◽  
pp. 696-698 ◽  
Author(s):  
H. I. Mencer ◽  
B. Kunst
Keyword(s):  
Column Method ◽  
Polymer Fractionation

Power conversion efficiency enhancement in diketopyrrolopyrrole based solar cells through polymer fractionation

2014 ◽  
Vol 2 (40) ◽  
pp. 8593-8598 ◽  
Author(s):  
Iain Meager ◽  
Raja Shahid Ashraf ◽  
Christian B. Nielsen ◽  
Jenny E. Donaghey ◽  
Zhenggang Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Performance Enhancement ◽  
Power Conversion ◽  
Efficiency Enhancement ◽  
P Fractionation ◽  
Polymer Fractionation ◽  
Preparative Gpc

Fractionation of a DPP copolymer by preparative GPC and device optimisation affords significant organic solar sell performance enhancement.

Methods of investigations temperature precipitation as a method for polymer fractionation

1971 ◽  
Vol 13 (4) ◽  
pp. 1102-1107 ◽  
Author(s):  
V.M. Gol'dberg ◽  
I.M. Bel'govskii ◽  
A.L. Izyumnikov
Keyword(s):  
Polymer Fractionation

Continuous polymer fractionation of polysaccharides using highly substituted trimethylsilylcellulose

1998 ◽  
Vol 199 (9) ◽  
pp. 1895-1900 ◽  
Author(s):  
Torsten Stöhr ◽  
Katrin Petzold ◽  
Bernhard A. Wolf ◽  
Dieter O. Klemm
Keyword(s):  
Polymer Fractionation

Polymer Fractionation at a Lower Critical Solution Temperature Phase Boundary

1967 ◽  
Vol 40 (5) ◽  
pp. 1544-1552
Author(s):  
C. H. Baker ◽  
C. S. Clemson ◽  
G. Allen
Keyword(s):  
Molecular Weight ◽  
Phase Boundary ◽  
Lower Critical Solution Temperature ◽  
Solution Temperature ◽  
Temperature Phase ◽  
Critical Solution Temperature ◽  
Upper Critical Solution Temperature ◽  
Two Samples ◽  
Polymer Fractionation ◽  
Molecular Weight Fractions

Abstract The influence of pressure on a lower critical solution temperature is much more pronounced than on an upper critical solution temperature. Accordingly it is possible to control phase separation at a LCST phase boundary under isothermal conditions by merely adjusting the pressure on the system. An apparatus has been constructed to investigate the isothermal fractionation of polyisobutene in which precipitation is controlled by pressure. Two samples of polyisobutene of Mv=1.76×106 and 9.0×104 have been fractionated in isopentane solution so as to yield up to six and nine fractions respectively. The integral molecular weight distribution curves thus obtained are compared with those obtained from conventional fractionations at an UCST. The sensitivity of the method is poor with regard to the separation of low molecular weight fractions and degradation occurs at the higher temperatures to an appreciable extent.

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