Diverse two-dimensional arrays of PNIPAM beads formed by spin-coating

作者：Pelah Avishay^*; Jovin Thomas M; Szleifer Igal

来源：Colloids and Surfaces A: Physicochemical and Engineering Aspects , 2007, 299(1-3): 1-7.

DOI：10.1016/j.colsurfa.2006.11.009

• PNIPAM
• beads
• array
• spin-coating
• capillary forces
• depletion forces

Two-dimensional arrays of thermosensitive poly(N-isopropylacrylamide) colloids were formed by spin-coating. The addition of the surfactant sodium dodecylsulfate to bead suspensions led to the formation of a variety of ordered arrays. A mechanism explaining the final shape and bead density of the arrays is proposed, taking into account the interplay between the different interactions presented in the process, including depletion, capillary and electrostatic forces.

• 出版日期2007-5-15