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Title: Camphor and poly (antimonyacrylate) based interpenetrating polymer network: Synthesis and characterization
Authors: Kamal, Meet
Keywords: Camphor
Complex formation
Issue Date: Jul-2011
Publisher: NISCAIR-CSIR, India
Abstract: Interpenetrating polymer based on camphor and poly(antimonyacrylate) using benzoylperoxide (BPO) as an initiator and divinyl benzene as cross-linking agent have been synthesized. The formation of IPN has been confirmed by presence of two-phase in SEM photographs. The IR spectrum reveals a band at 1730 cm<sup>-1</sup> due to –C=O group and at 3030 cm<sup>-1</sup> due to aromatic C–C stretching of phenyl group. Specific rotation [<img src='/image/spc_char/alpha.gif' border=0>]<sup>25</sup> = + 43.2° is observed for IPN (whereas that of pure camphor is 43.5 ± 1). The shifting of band from 1705 cm<sup>-1</sup> to 1730 cm<sup>-1</sup>, due to carbonyl group of camphor confirms the formation of complex between camphor and poly(antimony acrylate). The value of mutual interaction constant (<i style="">k</i><sub>AB</sub>) between polymer (A) and camphor (B) in DMSO, DMF, dioxan are calculated as DMSO (<i style="">k</i><sub>AB</sub> = 0.7), DMF (<i style="">k</i><sub>AB</sub> = 0.63) and dioxan (<i style="">k</i><sub>AB</sub> = 0.22). The properties like percentage swelling, average molecular weight between crosslinks (<i style="">M</i><sub>c</sub>), Young’s modulus are generally direct function of [poly (antimonyacrylate)] and [divinyl benzene]. The values of glass transition temperature (<i style="">T</i><sub>g</sub>) and activation energy (<i style="">E</i><sub>a</sub>) of IPN, calculated from DSC and TGA, are 240°C and 25 kJ/mol, respectively.
Description: 284-290
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.18(4) [July 2011]

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