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RING-OPENING POLYMERIZATION OF TRIMETHYLENE CARBONATE CATALYZED BY NOVEL SINGLE COMPONENT RARE EARTH CALIXARENE COMPLEXES

Wei-puZhu, Junling, Hongxu, Zhi-quanShen

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Abstract

In this paper, ring-opening polymerization of trimethylene carbonate (TMC) with rare earth (Nd, Y, La) p-tertbutylcalix[n]arene (n = 4, 6, and 8) complexes as catalysts has been studied. Poly(trimethylene carbonate) (PTMC) with Mv of 21,400 was produced by bulk polymerization under the conditions as follows: [TMC]0/[Nd] (molar ratio) = 1000, 80℃,8 h. Mechanism study reveals that the polymerization proceeds via a coordination mechanism.

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What this paper is about

In this paper, ring-opening polymerization of trimethylene carbonate (TMC) with rare earth (Nd, Y, La) p-tertbutylcalix[n]arene (n = 4, 6, and 8) complexes as catalysts has been studied. Poly(trimethylene carbonate) (PTMC) with Mv of 21,400 was produced by bulk polymerization under the conditions as follows: [TMC]0/[Nd] (molar ratio) = 1000, 80℃,8 h. Mechanism study reveals that the polymerization proceeds via a coordination mechanism.

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Available abstract

In this paper, ring-opening polymerization of trimethylene carbonate (TMC) with rare earth (Nd, Y, La) p-tertbutylcalix[n]arene (n = 4, 6, and 8) complexes as catalysts has been studied. Poly(trimethylene carbonate) (PTMC) with Mv of 21,400 was produced by bulk polymerization under the conditions as follows: [TMC]0/[Nd] (molar ratio) = 1000, 80℃,8 h. Mechanism study reveals that the polymerization proceeds via a coordination mechanism.

Key concepts: Trimethylene carbonate, Polymerization, Ring-opening polymerization, Carbonate, Polymer chemistry, Calixarene, Chemistry, Catalysis

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RING-OPENING POLYMERIZATION OF TRIMETHYLENE CARBONATE CATALYZED BY NOVEL SINGLE COMPONENT RARE EARTH CALIXARENE COMPLEXES — Research Paper | ScholarLens