SYNTHESIS AND CHARACTERIZATION OF HIGH MOLECULAR WEIGHT POLY(1,2-PROPYLENE CARBONATE-co-1,2-CYCLOHEXYLENE CARBONATE) USING ZINC COMPLEX CATALYST
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SYNTHESIS AND CHARACTERIZATION OF HIGH MOLECULAR WEIGHT POLY(1,2-PROPYLENE CARBONATE-co-1,2-CYCLOHEXYLENE CARBONATE) USING ZINC COMPLEX CATALYST
Chinese Journal of Polymer ScienceVol. 29, Issue 5, Pages: 552-559(2011)
Affiliations:
The Key Laboratory of Low-carbon Chemistry & Energy Conservation of Guangdong Province/State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University, Guangzhou 510275, China
Jing-shu Wu, Min Xiao, Hu He, et al. SYNTHESIS AND CHARACTERIZATION OF HIGH MOLECULAR WEIGHT POLY(1,2-PROPYLENE CARBONATE-co-1,2-CYCLOHEXYLENE CARBONATE) USING ZINC COMPLEX CATALYST[J]. Chinese Journal of Polymer Science, 2011, 29(5): 552-559. DOI: 10.1007/s10118-011-1078-y.
DOI:
Jing-shu Wu, Min Xiao, Hu He, et al. SYNTHESIS AND CHARACTERIZATION OF HIGH MOLECULAR WEIGHT POLY(1,2-PROPYLENE CARBONATE-co-1,2-CYCLOHEXYLENE CARBONATE) USING ZINC COMPLEX CATALYST[J]. Chinese Journal of Polymer Science, 2011, 29(5): 552-559. DOI: 10.1007/s10118-011-1078-y.DOI:
SYNTHESIS AND CHARACTERIZATION OF HIGH MOLECULAR WEIGHT POLY(1,2-PROPYLENE CARBONATE-co-1,2-CYCLOHEXYLENE CARBONATE) USING ZINC COMPLEX CATALYST
Using supported multi-component zinc dicarboxylate catalyst
poly(1
2-propylene carbonate-
co
-1
2-cyclohexylene carbonate) (PPCHC) was successfully synthesized from carbon dioxide (CO
2
) with propylene oxide (PO) and cyclohexene oxide (CHO). The conversion of epoxides dramatically increased up to 89.7% (yield: 384.2 g of polymer per g of Zn) with increasing reaction temperature from 60℃ to 80℃. The optimized reaction temperature is 80℃. The chemical structure
the molecular weight
as well as thermal and mechanical properties of the resulting terpolymers were investigated extensively. When CHO feed content (mol%) is lower than 10%
the PPCHC terpolymers have number average molecular weight (
M
n
) ranging from 102 × 10
3
to 202 × 10
3
and molecular weight distribution (MWD) values ranging from 2.8 to 3.5. In contrast to poly(propylene carbonate) (PPC)
the introduction of small amount of CHO leads to increase in the glass transition temperature from 38.0℃ to 42.6℃. Similarly
the mechanical strength of the synthesized terpolymer is greatly enhanced due to the incorporation of CHO. These improvements in mechanical and thermal properties are of importance for the practical application of PPC.
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Steric Hindrance Ligand Strategy to Aluminum Porphyrin Catalyst for Completely Alternative Copolymerization of CO2 and Propylene Oxide
ALTERNATING COPOLYMERIZATION OF CYCLOHEXENE OXIDE AND CARBON DIOXIDE UNDER COBALT PORPHYRIN CATALYST
CO2-Sourced Poly(chloropropylene carbonate) with High Flame-Retardant Performance
Rapid Conversion of Perhydropolysilazane into Thin Silica Coating at Low Temperature
Highly Regio- and trans-Selective Ring-opening Metathesis Polymerization of Chiral Aza-norbornene with a Simple Phenylimido-Tungsten Catalyst
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