Journal
CARBOHYDRATE POLYMERS
Volume 130, Issue -, Pages 290-298Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2015.05.009
Keywords
Corn starch; Expanded corn starch; Surface-initiated ATRP; Activators generated by electron transfer; ATRP; Poly(methyl methacrylate); Polystyrene
Categories
Funding
- CSIR-Indian Institute of Petroleum
- Council of Scientific and Industrial Research (CSIR)
- AK to University Grants Commission (UGC), Govt. of India
Ask authors/readers for more resources
Polymerization of styrene (St) and methyl methacrylate (MMA) was performed by surface initiated (SI) and activator generated by electron transfer (AGET) systems of atom transfer radical polymerization (ATRP) using renewable expanded corn starch (ECS) as a support. This prepared ECS is found to have V type crystallinity with 50 m(2) g(-1) surface area (<1 m(2) g(-1) for corn starch (CS)) and average pore volume of 0.43 cm(3) g(-1) (<0.1 cm(3) g(-1) for CS). In SI-ATRP, hydroxyl groups on ECS were converted into macro-initiator by replacing with 2-bromoisobutyryl bromide (BIBB) with a 0.06 degree of substitution determined from NMR. In AGET-ATRP, CuBr2/ligand complex get adsorbed on ECS (Cu-II/ECS = 10 wt.%) to catalyze the polymerization. Synthesized PS/PMMA was characterized by SEM, FT-IR,H-1 NMR. (C) 2015 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available