title: Multifunctional polymethylsilsesquioxane (PMSQ) surfaces prepared by electrospinning at the sol-gel transition: superhydrophobicity, excellent solvent resistance, thermal stability and enhanced sound absorption property.
abstract: Multifunctional superhydrophobic polymethylsilsesquioxane (PMSQ) surfaces with excellent solvent resistance, thermal stability and enhanced sound absorption property were manufactured by electrospinning. The surfaces with various hierarchical morphologies and hydrophobicity were obtained by electrospinning at the different stages of sol-gel transition of PMSQ prepolymer solution. At the stage with a proper viscosity the superhydrophobic PMSQ surface with a contact angle as high as 151° and a sliding angle as low as 8° was prepared. Due to the excellent thermal stability and solvent resistance properties of the cured PMSQ, the resultant surfaces remain superhydrophobicity after thermal treatment at 300 °C and immersion into many solvents. Additionally, an enhanced acoustical performance and ultra water repellency were obtained simultaneously when the traditional acoustical sponge was decorated with the electrospun PMSQ superhydrophobic surface. The robust superhydrophobic PMSQ surfaces may promise practical applications in many fields.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing 100190, China.
authors.forename: Haifan
authors.initials: H
authors.lastname: Xiang
authors.forename: Liang
authors.initials: L
authors.lastname: Zhang
authors.forename: Zhen
authors.initials: Z
authors.lastname: Wang
authors.forename: Xiaolan
authors.initials: X
authors.lastname: Yu
authors.forename: Yuhua
authors.initials: Y
authors.lastname: Long
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Zhang
authors.forename: Ning
authors.initials: N
authors.lastname: Zhao
authors.forename: Jian
authors.initials: J
authors.lastname: Xu
mesh_terms: D005782:Gels / Q000737:chemistry; D057927:Hydrophobic and Hydrophilic Interactions; D017646:Organosilicon Compounds / Q000737:chemistry*; D010316:Particle Size; D011108:Polymers / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry; D013499:Surface Properties; D013696:Temperature
chemical_list: D005782:Gels; D017646:Organosilicon Compounds; D011108:Polymers; D012997:Solvents; C532869:polymethylsilsesquioxane