Preparation of partially neutralized poly(acrylic acid) microspheres via inverse pickering suspension polymerization    
Yazarlar (3)
Öğr. Gör. Özgür CEYLAN Yalova Üniversitesi, Türkiye
Doç. Dr. Mehmet Arif KAYA Yalova Üniversitesi, Türkiye
Ayfer Saraç
Yıldız Teknik Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Polymer Engineering and Science
Dergi ISSN 0032-3888 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 01-2019
Cilt No 59
Sayı 1
Sayfalar 162 / 169
DOI Numarası 10.1002/pen.24883
Makale Linki http://doi.wiley.com/10.1002/pen.24883
Özet
Partially neutralized poly(acrylic acid) (PAA) microspheres have been prepared by Inverse Pickering Suspension Polymerization (IPSP) using 1,2-dichlorobenzene (DCB) and hydrophobic fumed silica nanoparticles (HFSi-NPs) as organic dispersing media and dispersing agent respectively. As crosslinker N,N'-methylene bisacrylamide (MBAc), as initiator potassium persulfate (KPS) and sodium metabisulfite (SMBS) redox couple were used. Neutralization degrees were adjusted using 8N NaOH solution and polymerizations were initiated at 34°C. Water/oil phase ratio was set to 1/7 for all polymerizations. Morphology of prepared dry poly(acrylic acid) beads was examined by two microscopic methods, scanning electron microscopy (SEM) and optical microscopy. Prepared microsized polymer beads were observed as smooth and spherical in shape. Effect of neutralization degree (α) varied from 70% to 90% on absorptions in both distilled water and saline solutions, absorption under load (AUL) and crosslink density (CD) results were also investigated. POLYM. ENG. SCI., 59:162–169, 2019. © 2018 Society of Plastics Engineers.
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