Thesis-1996-Al-Feir.pdf (3.16 MB)
Synthesis of some organotin monomers and copolymerisation with acrylic monmers
thesis
posted on 2012-09-14, 10:07 authored by Saud M. H. Al-FeirThe aim of this thesis was to synthesise new organotin monomers based on Nsubstituted
acrylamide and methacrylamide and on acrylic acid and methacrylic
acid esters with pendant hydrolysable organotin moieties and to study their
copolymerisation with methyl acrylate (MA), butyl acrylate (BA) and methyl
methacrylate (MMA). A specific objective was to obtain suitable
macromolecular chains, to which the organotin moieties could be attached at
some distance from the main backbone. The new organotin monomers which
were synthesised are: m-acrylamidotri-n-butyltin benzoate (m-AATBTB), p-acrylamidotri-n-butyltin
benzoate (p-AATBTB), m-methacrylamidotri-n-butyltin benzoate (mMAATBTB),
p-methacrylamidotri-n-butyltin benzoate (p-MAATBTB), 0-
acryloyloxytri-n-butyltin benzoate (o-AOTBTB) and o-methacryloyloxytri-nbutyltin
benzoate (o-MAOTBTBO). These were prepared by the reaction of
bis(tri-n-butyltin) oxide (TBTO) with the corresponding acrylamide or
acryloyloxy benzoic acid which were prepared by the reaction of aminobenzoic
acid derivatives or salicylic acid with either acryloyl chloride or acrylic
anhydride. These organotin monomers were polymerised in dimethylformamide
(DMF) solution with azobisisobutyronitrile (AIBN) as initiator. Binary
copolymerisation experiments were performed by solution polymerisation in
DMF solution with AIBN as initiator. The copolymer composition in each case
was determined from tin analysis. Since the properties of these organotin
polymers are related to the distribution of monomer units, it is of great interest
to determine the actual monomer reactivity ratios which control the sequence
length distribution. Monomer reactivity ratios were calculated by the KelenTudos
method. All of these organotin polymers and copolymers were
characterised by Nuclear magnetic resonance spectroscopy (NMR) and Fourier
Transform infrared spectroscopy (FTIR) methods, gel permeation
chromatograghy (GPC) and dynamic mechanical thermal analysis (DMTA).
History
School
- Science
Department
- Chemistry
Publisher
© Saud M. Al-FeirPublication date
1996Notes
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.EThOS Persistent ID
uk.bl.ethos.360837Language
- en