writer：Yang P, Sun YF, Deng JY, Liu WN, Zhang L, Yang WT
keywords：functionalization of polymers; inhibitors; photografting; supports; surfaces
source：期刊
specific source：JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
Issue time：2004年
The synthesis of a polymer-supported inhibitor (PSI) and its inhibition performance for free-radical polymerization are reported for the first time. A special method has been devised to synthesize PSI with pure and abundant hydroquinone (HQ) groups anchored onto the polymer surface. A thin HQ/acetone (AC) solution is sandwiched between two polymer films. Under ultraviolet irradiation, AC as an photoinitiator quickly and effectively grafts HQ onto the polymer surface. PSI has been characterized with ultraviolet-visible and attenuated total reflectance/Fourier transform infrared spectroscopy. For potential applications, PSI has been used to inhibit the thermal polymerization of styrene and methyl methacrylate. The corresponding inhibition performance has been investigated through the measurement of the induction period with the dilatometer method. With the same absolute amount, the maximum inhibition ability of PSI approaches half that of a free inhibitor. Increasing the dispersion degree of PSI is favorable for the enhancement of the inhibition ability.