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Polymer Sciences | ISSN: 2471-9935
October 02-03, 2017 Chicago, USA
3
rd
International Conference on
Polymer Science and Engineering
Preparation of chlorinated poly(propylene carbonate) and its properties
Wei Jiang, Xihua Cui
and
Guiyan Zhao
Chinese Academy of Sciences, China
C
arbon dioxide is an inexhaustible inexpensive chemical raw material, and it has been recently noted to fix carbon dioxide into
a chemical material on a large scale. Since Inoue synthesized aliphatic polycarbonates having high molecular weight by using
the copolymerization of carbon dioxide and an epoxy compound in 1969,1 the study on the copolymerization of carbon dioxide and
epoxy compounds has been continuously deepened and developed.2 Nowadays, it become a research focus in the field of polymer
sciences to synthesize polymer materials by using carbon dioxide as the raw material. For an example, poly(propylene carbonate)
(PPC) as a typical biodegradable material is an alternating copolymer of carbon dioxide and propylene oxide,3 and has been put
into the stage of industrial production. Recently, PPC was chlorinated in our laboratory by a gas-solid phase reaction(Figure 1).4 Ion
chromatography and NMR tests showed that chlorine atoms were successfully introduced onto the PPC polymer chains. We named
this new chlorinated polymer as chlorinated poly(propylene carbonate) (CPPC). It was worth noted that the chlorination reaction
is quite warm at 60
o
C without any solvent and catalyzer, which is easily and simply realized for industrial production. It was found
that the CPPC processed many more distinguished properties in solubility, wettability, adhesive, and gas barrier et al comparing to
the PPC. For examples, the bonding strength of the CPPC as adhesive was nearly four times higher than that of the PPC on wood,
stainless steel and glass by thermal bonding at 180°C. The oxygen permeability coefficient of the CPPC exhibits a decrease of 33%
comparing to the PPC. Moreover, the CPPC kept good biodegradability. These results indicated that the CPPC could be widely used
in coating, adhesive, barrier materials, and so on, which could greatly promote the development of PPC industry. This work was
financially supported by the National Natural Science Foundation of China for General Program (51673195).
wjiang@ciac.ac.cnPolym Sci, 3:3
DOI: 10.4172/2471-9935-C1-003