Premium
Grafting of telechelic poly(lactic‐ co ‐glycolic acid) onto O 2 plasma‐treated polypropylene flakes
Author(s) -
Ren Jing,
Hua Xiaoqing,
Zhang Tianzhu,
Zhang Zhigang,
Ji Zhenling,
Gu Ning
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.33510
Subject(s) - glycolic acid , plga , contact angle , polypropylene , polymer chemistry , grafting , materials science , fourier transform infrared spectroscopy , dichloromethane , chemical engineering , chemistry , lactic acid , composite material , organic chemistry , polymer , nanotechnology , solvent , genetics , bacteria , nanoparticle , engineering , biology
In this work, we described a facile approach to preparing polypropylene (PP) surface functionalized with telechelic poly(lactic‐ co ‐glycolic acid) (HO‐PLGA‐COOH). The PP flakes were first treated with oxygen plasma and then grafted with different molecular weight PLGA ( M w = 50, 100, and 300 K) in dry dichloromethane solution with the addition of phosphorus pentachloride (PCl 5 ). The attenuated total reflectance‐Fourier transform infrared (ATR–FTIR) spectroscopy measurements were used to characterize the composition of the PP surface. The appearance of 1756 cm −1 for carbonyl (CO) stretching and 1090 cm −1 for COC and the morphologies observations by atomic force microscopy show that PLGA graft covered the surface of PP flake. The IR intensity at 1756 cm −1 increases with the decreasing M w of PLGA, and the molecular weight of PLGA also influence the grafting of PLGA on PP. The contact angle was used to monitor the changes in hydrophilicity of PP flake surface along the treatment procedure. PLGA‐grafted PP (PP‐ g ‐PLGA) was eventually obtained. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011