Degradation of aqueous poly(acrylic acid) and its sodium salt solutions by high‐speed stirring | Zendy

Nakano Akihiko | Zendy; Minoura Yuji | Zendy

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Degradation of aqueous poly(acrylic acid) and its sodium salt solutions by high‐speed stirring

Author(s) -

Nakano Akihiko,

Minoura Yuji

Publication year - 1978

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.1978.070220813

Subject(s) - acrylic acid , aqueous solution , polymer , neutralization , polymer chemistry , intrinsic viscosity , viscosity , salt (chemistry) , degradation (telecommunications) , materials science , chemical engineering , chemistry , nuclear chemistry , copolymer , organic chemistry , composite material , telecommunications , computer science , antibody , immunology , biology , engineering

Poly(acrylic acid) and 100% neutralized poly(acrylic acid) in pure water were stirred at 30°C at 30,000 rpm with a T. K. Homomixer at polymer concentrations ranging from 2% w/v to 0.0025% (25 ppm) for 2 hr to investigate the effect of polymer chain conformation on chain scission by high‐speed stirring. After 2 hr of stirring at low concentration, intrinsic viscosity measured in 1.00 mole/1. NaCl solution at 30°C for 100% neutralized polymer was lower for the polymer which was stirred after 100% neutralization than for the one before 100% neutralization, showing that expanded polymer chains were more easily ruptured.

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