Use of a novel initiator for synthesis of amino-end functionalized polystyrene (NH2-PS) by atom transfer radical polymerization

作者：Pourjavadi Ali^*; Seidi Farzad; Jahromi Payam Eftekhar; Salimi Hamid; Roshan Saeed; Najafi Ali; Bruns Nico

来源：Journal of Polymer Research, 2012, 19(1): 9752.

DOI：10.1007/s10965-011-9752-x

• Atom transfer radical polymerization (ATRP)
• End-functionalization
• Amino-end polystyrene, novel initiator

Here we report a versatile new method for end-functionalizing polystyrene. In order to produce polystyrene with an amino end group, 2-(3-bromo-3-phenylpropyl)isoindoline-1,3-dione was synthesized and used as a novel initiator for ATRP. After ATRP polymerization, tri-n-butyltin hydride ((n-Bu)(3)SnH) reductively replace existing halogens on polymer chains by hydrogen. Finally, the phthaloyl groups on polymer backbone were cleaved by treatment with hydrazine yielding amino terminated polystyrene. A polymer with M-n approximate to 10,350 and M-w/M-n=1.17 was obtained. Therefore, this method allows the preparation of amino end functionalized polystyrene of narrow polydispersity with complete degree of functionalization.

• 出版日期2012-1