期刊
MACROMOLECULES
卷 51, 期 10, 页码 3582-3596出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.macromol.8b00456
关键词
-
资金
- VEGA Grant Agency [2/0158/17]
- SRDA Grant Agency [APVV-15-0528]
- Polish Academy of Sciences
- Slovak Academy of Sciences
The synthesis of functional copolyesters that contain pendant double bonds in their structures is reported by ring opening copolymerization of renewable monomer Tulipalin A (alpha-methylene-y-butyrolactone, MBL) and epsilon-caprolactone (CL) using either coordination insertion or monomer activated mechanisms. Aluminum tris(isopropoxide) (Al((OPr)-Pr-i)(3)) was successfully used as a cheap and commonly available catalyst for the coordination insertion ring-opening copolymerization, and functional copolyesters with dispersities below 1.2 and with contents of MBL units in the copolymer up to 25 mol % were prepared. In addition, linear or multiarm copolymers of MBL with CL were synthesized by cationic ring-opening copolymerization that was conducted using protic acid as a metal-free catalyst in combination with mono-or multihydroxyl alcohols as initiators. The molecular characteristics and composition of the functional copolyesters were determined by GPC, NMR, two-dimensional NMR, and MALDI-TOF spectroscopy. The effect of MBL content on thermal properties of the copolyesters was investigated using DCS and TGA analyses. The availability of resulting functional copolyesters containing pendant double bonds toward postfunctionalization was demonstrated by either thermal or photochemical thiol-ene reactions with benzothioxanthene fluorophore or N-acetylcysteine, respectively.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据