Microemulsion photopolymerization of methacrylates stabilized with sodium dodecyl sulfate and poly(N-acetylethylenimine) macromonomers
EUROPEAN POLYMER JOURNAL, cilt.38, sa.1, ss.73-78, 2002 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 38 Sayı: 1
- Basım Tarihi: 2002
- Doi Numarası: 10.1016/s0014-3057(01)00162-8
- Dergi Adı: EUROPEAN POLYMER JOURNAL
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.73-78
- Hacettepe Üniversitesi Adresli: Hayır
Özet
Methyl methacrylate and butyl methacrylate were polymerized in oil-in-water microemulsions that were stabilized by sodium dodecyl sulphate (SIDS). A poly(N-acetylethylenimine) (PNAEI) macromer was also included in the recipe, as a cosurfactant and a comonomer. Polymerizations were initiated by UV-irradiation. The average diameters of latex particles, obtained by STM, were in the range of 17-200 nm. The experimental data evidenced that the particle size was mainly dependent on the SDS/PNAEI ratio. Polymerization yields were around 75-85%. The synthesized copolymers have viscosity average molecular weights in the range of 2.1-2.4 x 10(6) and glass transition temperatures of 38.0-43.5 degreesC, lower than those obtained without using PNAEI. The investigation by means of FTIR and H-1-NMR techniques revealed that PNAEI was incorporated into the nanoparticles. (C) 2001 Elsevier Science Ltd. All rights reserved.