Investigation of the vapor-phase grafting of styrene onto PFA

被引：6

作者：

Dargaville, TR

George, GA

Hill, DJT ^{[1
]}

Whittaker, AK

机构：

[1] Univ Queensland, Polymer Mat & Radiat Grp, Brisbane, Qld 4072, Australia

[2] Univ Queensland, Ctr Magnet Resonance, Brisbane, Qld 4072, Australia

[3] Queensland Univ Technol, Sch Phys & Chem Sci, Brisbane, Qld 4001, Australia

来源：

MACROMOLECULES | 2003年 / 36卷 / 22期

关键词：

D O I：

10.1021/ma0302255

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(tetrafluoroethylene-co-perfluoropropyI vinyl ether), PFA, was grafted with styrene from the vapor phase using a simultaneous radiation grafting method. The graft yields were measured as a function of the dose and dose rate and were found to be initially linearly dependent on the dose and independent of the dose rate up to dose rates of similar to3 kGy/h. However, at a dose rate of 6.2 kGy/h, the slope of the yield-grafting time plot decreased. Raman depth profiles of the grafts showed that the polystyrene concentrations were greatest near the surface of the grafted samples and decreased with depth. The maximum penetration depth of the graft depended on the radiation dose for a fixed dose rate. Fmoc-Rink loading tests showed that the grafts displayed superior loading compared to grafts prepared from bulk styrene or from styrene solutions other than methanol.

引用

页码：8276 / 8281

页数：6

共 37 条

[1] RADIATION-INDUCED GRAFTING OF ALLYL ALCOHOL ONTO ORIENTED HIGH-DENSITY POLYETHYLENE [J].