Light scattering determination of band offsets inGaAs−AlxGa1−xAsquantum wells

1986 ◽  
Vol 33 (12) ◽  
pp. 8863-8866 ◽  
Author(s):  
J. Menéndez ◽  
A. Pinczuk ◽  
D. J. Werder ◽  
A. C. Gossard ◽  
J. H. English
Keyword(s):  
Light Scattering ◽  
Band Offsets

Light scattering determination of band offsets in and quantum wells: A comparative study

1987 ◽  
Vol 3 (2) ◽  
pp. 163-166 ◽  
Author(s):  
J Meneńdez ◽  
A Pinczuk ◽  
D.J Werder ◽  
A.C Gossard ◽  
J.H English ◽  
...  
Keyword(s):  
Light Scattering ◽  
Comparative Study ◽  
Quantum Wells ◽  
Band Offsets

Preparation of graft copolymers by the reaction of polymeric acyl chlorides with monohydroxy-terminated polymers: An introductory study

1988 ◽  
Vol 53 (8) ◽  
pp. 1735-1744 ◽  
Author(s):  
Jitka Horská ◽  
Jaroslav Stejskal ◽  
Pavel Kratochvíl ◽  
Aubrey D. Jenkins ◽  
Eugenia Tsartolia ◽  
...  
Keyword(s):  
Light Scattering ◽  
Chemical Composition ◽  
Statistical Model ◽  
Graft Copolymers ◽  
Coupling Reaction ◽  
Molecular Characteristics ◽  
Gel Formation ◽  
Acyl Chlorides ◽  
Molecular Weights

An attempt was made to prepare well-defined graft copolymers by the coupling reaction between acyl chloride groups located along the backbone chain and monohydroxy-terminated grafts prepared separately. The molecular weights and the parameters of heterogeneity in chemical composition of the products were determined by light scattering and osmometry. The determination of molecular characteristics revealed that the degree of grafting was low. The results therefore could not be confronted with a statistical model at this stage. The problems encountered in the synthesis, e.g., gel formation, and the data relating to the soluble products are discussed.

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