Synthesis and characterization of brush diblock and triblock copolymers bearing polynorbornene backbone and poly(l-lactide) and/or poly(hexyl isocyanate) side chains by a combination of coordination and ring opening metathesis polymerization

被引：10

作者：

Choinopoulos, Ioannis ^{[1
,2
]}

Patias, George ^{[1
]}

Koinis, Spyros ^{[2
]}

Pitsikalis, Marinos ^{[1
]}

机构：

[1] Univ Athens, Dept Chem, Ind Chem Lab, Athens 15771, Greece

[2] Univ Athens, Dept Chem, Inorgan Chem Lab, Athens 15771, Greece

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2017年 / 55卷 / 20期

关键词：

hexyl isocyanate; lactide; macromonomers; metallocenes; polymer brush; ROMP; COMPLEX MACROMOLECULAR ARCHITECTURES; MOLECULAR BRUSHES;

D O I：

10.1002/pola.28727

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We report the synthesis of poly(l-lactide) and poly(hexyl isocyanate) macromonomers using bischloro-(5)-cyclopentadienyl(bicyclo[2.2.1]-hept-5-en-2-oxy) Titanium (IV), [CpTiCl2(O-NBE)]. These macromonomers bearing a norbornene end group were polymerized towards brush copolymers employing Grubbs' first generation catalyst. Brush copolymers consisting of blocks with different side chains were synthesized. The polymers were characterized by Size Exclusion Chromatography, Nuclear Magnetic Resonance, and their thermal properties were investigated by Thermogravimetric Analysis, and Differential Scanning Calorimetry analysis. (c) 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017, 55, 3455-3465

引用

页码：3455 / 3465

页数：11

共 17 条

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