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- W1990641387 abstract "Abstract Since the first contributions by Gedye and Giguere in 1986, growing attention has been registered on the use of microwave heating in organic synthesis. However still many aspects need to be clarified especially about the so called “microwave effect” and the possible degradation phenomena that may be recognized during polymer synthesis. In this work the complex cone -25,27- dipropyloxy-26,28-dioxo-calix[4]arene titanium (IV) dichloride ( 1 ) has been tested for the ring opening polymerization of L -lactide, comparing the effect of conventional heating with a possible microwave assisted strategy. The polymers obtained were fully characterized (NMR, IR, HPLC-SEC, DSC, MALDI-TOF and WAXD analysis). As expected the use of microwave irradiation induced an increase of the polymerization rate. On the other side the use of microwaves resulted in a slight loss of the control over molecular weight and molecular weight distribution if compared with a conventional thermal treatment." @default.
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- W1990641387 date "2010-12-01" @default.
- W1990641387 modified "2023-09-27" @default.
- W1990641387 title "L-Lactide polymerization by calix[4]arene-titanium (IV) complex using conventional heating and microwave irradiation" @default.
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- W1990641387 doi "https://doi.org/10.1515/epoly.2010.10.1.177" @default.
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