Tetrahydrosalen backboned gadolinium complex as initiator for the ring-opening polymerization of ɛ-caprolactone

Autor:	Wei Lin Sun, Guang Ming Wu, Zhiquan Shen, Xu Feng Ni
Rok vydání:	2008
Předmět:	chemistry.chemical_compound Polymerization Chemistry Ligand Gadolinium Polymer chemistry Anhydrous chemistry.chemical_element General Chemistry Metathesis Ring-opening polymerization Toluene Catalysis
Zdroj:	Chinese Chemical Letters. 19:681-684
ISSN:	1001-8417
Popis:	Tetrahydrosalen ligand was employed in the synthesis of gadolinium complex. The ligand was deprotoned by LiBu, and the afforded lithium salt was reacted with anhydrous GdCl 3 to produce the gadolinium complex through salt metathesis. This complex was successfully used to initiate the ring-opening polymerization of ɛ-caprolactone. The initiation conditions in different temperature, monomer-to-initiator ratio and time were investigated. Under the condition: [ɛ-caprolactone]:[catalyst] = 600, 56 °C, toluene: 2 ml, poly(ɛ-caprolactone) (PCL) with Mw = 11,2782 and PDI = 1.96 was achieved.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::eef0de7356a1dbe18f8221c07a825b3f https://doi.org/10.1016/j.cclet.2008.04.021 Zobrazit plný text záznamu Full Text from ScienceDirect