TY - JOUR A2 - Khan, Saad AU - Shahabuddin, Syed AU - Hamime Ismail, Fatem AU - Mohamad, Sharifah AU - Muhamad Sarih, Norazilawati PY - 2015 DA - 2015/01/22 TI - Synthesis of Well-Defined Three-Arm Star-Branched Polystyrene through Arm-First Coupling Approach by Atom Transfer Radical Polymerization SP - 961914 VL - 2015 AB - Here we describe a simple route to synthesize three-arm star-branched polystyrene. Atom transfer radical polymerization technique has been utilized to yield branched polystyrene involving Williamson coupling strategy. Initially a linear polymeric chain of predetermined molecular weight has been synthesized which is further end-functionalized into a primary alkyl bromide moiety, a prime requisition for Williamson reaction. The end-functionalized polymer is then coupled using 1,1,1-tris(4-hydroxyphenyl)ethane, a trifunctional core molecule, to give well-defined triple-arm star-branched polystyrene. SN - 1687-9422 UR - https://doi.org/10.1155/2015/961914 DO - 10.1155/2015/961914 JF - International Journal of Polymer Science PB - Hindawi Publishing Corporation KW - ER -