TY - JOUR A1 - Joshi, Ranjit A1 - Schulze, Rolf-Dieter A1 - Meyer-Plath, Asmus A1 - Friedrich, Jörg Florian T1 - Selective surface modification of Poly(propylene) with OH and COOH groups using liquid-plasma systems JF - Plasma processes and polymers N2 - Underwater plasma and glow discharge electrolysis are interesting new methods for polymer surface functionalization. The achievable content of O-containing functional groups exceeds that of oxygen glow discharge gas plasmas by a factor of two (up to ca. 56 O/100 C). The percentage of OH groups among all O-containing groups can reach 25 to 40%, whereas it is about 10% in the gas plasmas. Addition of hydrogen peroxide increases the fraction of OH groups to at most 70% (27 OH/100 C). The liquid plasma systems are also able to polymerize acrylic acid and deposit the polymer as very thin film on substrate surfaces or membranes, thereby retaining about 80% of all COOH functional groups (27 COOH/100 C). KW - Polymeroberflächen KW - Funktionelle Gruppen PY - 2008 DO - https://doi.org/10.1002/ppap.200700175 SN - 1612-8850 SN - 1612-8869 VL - 5 IS - 7 SP - 695 EP - 707 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-18884 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -