Zum Einfluß des Salzgehaltes auf die Bildung und Struktur von Polyelektrolytkomplexen (Symplexen)

✍ Scribed by Herbert Dautzenberg; Horst Dautzenberg

• Publisher: John Wiley and Sons
• Year: 1985
• Tongue: English
• Weight: 732 KB
• Volume: 36
• Category: Article
• ISSN: 0323-7648
• DOI: 10.1002/actp.1985.010360210

✦ Synopsis

• [M,] = 3 mol 1-l.experimental; xcalculated with rl = 0.174, r, = 6.87 r2. Here, t h e electrostatic interactions according t o Scheme 1 should be nearly unchanged because we can assume only small differences i n t h e charge density of t h e copolymers.

Decrease of DMDAAC, (constant total concentration of both comonomers) has a n influence on t h e copolymerization with AA because of t h e electrostatic interactions discussed i n section b) resulting i n t h e experimentally detected increase of rI.

3. Experimental

DMDAAC was prepared by the method of HARADA [lo].

Polymerizations were carried out with oxygen-free solutions of the monomers in bidistilled water in ampulles a t 35OC, using S,082-as initiator. The copolymers were isolated and purified as described previously with poly-DMDAAC [ll]. The content of DMDAAC, in the copolymer was determined by electrometric titration of C1-.

Calculations of rl and r2 were carried out by the