Aggregation processes of a weak polyelectrolyte, poly(allylamine) hydrochlorideopen access
- Authors
- Park, Jaejung; Choi, Young-Wook; Kim, KyungBae; Chung, Hoeil; Sohn, Daewon
- Issue Date
- Jan-2008
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- flocculation; homogeneity parameter; polyelectrolyte; probe charge effect; pH dependence
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.29, no.1, pp.104 - 110
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY
- Volume
- 29
- Number
- 1
- Start Page
- 104
- End Page
- 110
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/172189
- DOI
- 10.5012/bkcs.2008.29.1.104
- ISSN
- 0253-2964
- Abstract
- Poly(allylamine) hydrochloride is a weak cationic polyelectrolyte that exhibits different aggregation properties at different solution pH values and aging times. Specifically, after several days aging in a pH 3 buffer, less than 1 mg/mL poly(allylamine) hydrochloride became turbid, and the hydrodynamic radius increased with a single diffusion mode. However, the hydrodynamic radius did not change at high concentrations. The dynamic processes of polymer aggregations at different pH values were verified by a light scattering and zeta-potential apparatus. The major interaction was caused by the capturing of counterions by the polyelectrolyte, which generates electrostatic, hydrophobic and cation-pi interactions.
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