Micellization of poly(2-vinylpyrridine)-b-poly(cyclohexyl methacrylate) (P2VP-b-PCHMA) block copolymers and their interpolymer complex formation in non-aqueous medium

2019 ◽  
Vol 549 ◽  
pp. 171-178
Author(s):  
Leonard I. Atanase ◽  
Gerard Riess
Keyword(s):  
Block Copolymers ◽  
Complex Formation ◽  
Aqueous Medium ◽  
Interpolymer Complex ◽  
Cyclohexyl Methacrylate

Interpolymer complex formation between form I helical and form II helical poly(l-proline) and poly(carboxylic acids)

1997 ◽  
Vol 39 (1) ◽  
pp. 45-52 ◽  
Author(s):  
Hyun-Don Kim ◽  
Sung-Ho Jin ◽  
Sang Bae Lee ◽  
Jung-Sung Yang
Keyword(s):  
Complex Formation ◽  
Carboxylic Acids ◽  
Interpolymer Complex

Meisenheimer Complex Formation Between 1,3,5-Trinitrobenzene and Hydroxide Ion. Equilibrium Constants for the Dimethylformamide–Water Solvent System

1972 ◽  
Vol 50 (11) ◽  
pp. 1729-1733 ◽  
Author(s):  
E. A. Symons ◽  
E. Buncel
Keyword(s):  
Complex Formation ◽  
Aqueous Medium ◽  
Equilibrium Constant ◽  
Equilibrium Constants ◽  
Solvent System ◽  
Medium Composition ◽  
Hydroxide Ion ◽  
Spectrophotometric Methods ◽  
Water Solvent ◽  
Sigma Complex

Sigma-complex formation between 1,3,5-trinitrobenzene (TNB) and hydroxide ion has been studied quantitatively as a function of medium composition for part of the dimethylformamide (DMF)–water solvent system by spectrophotometric methods. Only a 1:1 complex is detected under the conditions of measurement, with [TNB] ≥ [OH−]. The equilibrium constant (Keq) for complex formation in 22 mol % DMF has the value 3 × 10−3 l mol−1, compared with 3 l mol−1 in purely aqueous medium. Further increases in Kcq occur as the DMF content of the medium is raised; in 50 mol % DMF Keq ≈ 105, but reliable Keq values could not be obtained in this region of medium composition. The increase in Keq with increasing DMF content is interpreted largely on the basis of hydroxide ion desolvation.

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