Synthesis of Grafted Polysilsesquioxane by Ring-Opening Polymerization of Lactide
نویسندگان
چکیده
منابع مشابه
Zinc-Catalyzed Highly Isoselective Ring Opening Polymerization of rac-Lactide
A family of chiral zinc amido-oxazolinate complexes are shown to be highly active and isoselective initiators for the ring-opening polymerization (ROP) of rac-lactide, yielding isotactic stereoblock polylactides (PLA) with Pm up to 0.91. This represents the highest isoselectivity observed with zinc-based catalysts for ROP of rac-lactide.
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Cellulose-graft-poly (L-lactide) (cellulose-g-PLLA) was prepared under homogeneous mild conditions. Ring-opening polymerization (ROP) was carried out successfully using 4-dimethylaminopyridine (DMAP) as an organic catalyst in an ionic liquid 1-allyl-3-methylimidazolium chloride (AmimCl). The structure of the polymer was characterized by GPC, H NMR, C NMR, FT-IR, TGA, WAXD, and AFM. The results ...
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ژورنال
عنوان ژورنال: Polymer Journal
سال: 2009
ISSN: 1349-0540,0032-3896
DOI: 10.1295/polymj.pj2008307