Role of textile substrate hydrophobicity on the adsorption of hydrosoluble nonionic block copolymers

Junlong Song; Carlos Salas; Orlando J Rojas

doi:10.1016/j.jcis.2015.04.061

Role of textile substrate hydrophobicity on the adsorption of hydrosoluble nonionic block copolymers

J Colloid Interface Sci. 2015 Sep 15:454:89-96. doi: 10.1016/j.jcis.2015.04.061. Epub 2015 May 6.

Authors

Junlong Song¹, Carlos Salas², Orlando J Rojas³

Affiliations

¹ Jiangsu Provincial Key Laboratory of Pulp and Paper Science & Technology, Nanjing Forestry University, Nanjing, Jiangsu 210037, PR China; Department of Forest Biomaterials, North Carolina State University, Campus Box 8005, Raleigh, NC 27695-8005, USA. Electronic address: junlong.song@njfu.edu.cn.
² Department of Forest Biomaterials, North Carolina State University, Campus Box 8005, Raleigh, NC 27695-8005, USA.
³ Department of Forest Biomaterials, North Carolina State University, Campus Box 8005, Raleigh, NC 27695-8005, USA; Bio-based Colloids and Materials, School of Chemical Technology, Aalto University, P.O. Box 16300, Aalto FIN-00076, Finland. Electronic address: orlando.rojas@aalto.fi.

PMID: 26004573
DOI: 10.1016/j.jcis.2015.04.061

Abstract

The adsorption of polyalkylene glycols and co-polymers of ethylene oxide and propylene oxide on substrates relevant to textiles with varying surface energies (cellulose, polypropylene, nylon and polyester) was studied by using quartz crystal microgravimetry. Langmuirian-type isotherms were observed for the adsorption profiles of nonionic block polymers of different architectures. The affinity with the surfaces is discussed based on experimental observations, which highlights the role of hydrophobic effects. For a given type of block polymer, micellar and monomeric adsorption is governed by the balance of polymer structure (mainly, chain length of hydrophobic segments) and substrate's surface energy.

Keywords: Adsorption; Cellulose; Ethylene oxide and propylene oxide copolymers; Hydrophobic forces; Nonionic polymers; Nylon; Pluronics; Polyalkylene glycols; Polyester; Polypropylene.