Jian ZHOU, Jin YAO, Li-fen ZHANG, Han LI, Hui-yun ZHOU, Qun-fu FAN, Xiao-dong XU. Progress in Supercritical CO2 Assisted Grafting of Polypropylene in Solid Phase[J]. Polymer Bulletin, 2014,27(11):109-115.
Jian ZHOU, Jin YAO, Li-fen ZHANG, Han LI, Hui-yun ZHOU, Qun-fu FAN, Xiao-dong XU. Progress in Supercritical CO2 Assisted Grafting of Polypropylene in Solid Phase[J]. Polymer Bulletin, 2014,27(11):109-115.DOI:
Polypropylene has become one of the most widely used and rapidly growing general plastics
but its application is restricted in some areas owning to its non-polarity. Grafting polar monomers to the PP main chain is one of the most effective methods to improve its polarity. There are several common methods
such as high-energy radiation grafting
UV-induced surface grafting
plasma
controlled/living polymerization
supercritical CO
2
assisted grafting etc. Among these methods
supercritical CO
2
assisted grafting has been widely applied because of its good solubility to monomers
good swelling ability to polymer matrix
non-toxic
non-flammable
and relatively low cost. In this paper
advances in supercritical CO
2
assisted grafting of polypropylene in solid phase were systematically reviewed in several aspects
such as grafting mechanism
selection of monomers
impact factors and application of supercritical CO