Surface grafting of microfibrillated cellulose with poly(ε-caprolactone) - Synthesis and characterization

被引：142

作者：

Lonnberg, Hanna ^{[1
]}

Fogelstrom, Linda ^{[1
]}

Berglund, My Ahmed Said Azizi Sarnir Lars ^{[1
]}

Malmstrom, Eva ^{[1
]}

Hult, Anders ^{[1
]}

机构：

[1] Royal Inst Technol, Dept Fibre & Polymer Technology, SE-10044 Stockholm, Sweden

来源：

EUROPEAN POLYMER JOURNAL | 2008年 / 44卷 / 09期

关键词：

Microfibrillated cellulose; Grafting of poly(epsilon-caprolactone); Ring-opening polymerization; Thermal gravimetric analysis; Differential scanning calorimetry; Dispersion;

D O I：

10.1016/j.eurpolymj.2008.06.023

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

In cellulose nanocomposites, the surface of the nanocellulosic phase is critical with respect to nanocellulose dispersion, network formation and nanocomposite properties. Microfibrillated cellulose (MFC) has been grafted with poly(epsilon-caprolactone) (PCL), via ring-opening polymerization (ROP). This changes the surface characteristics of MFC and makes it possible to obtain a stable dispersion of MFC in a nonpolar solvent; it also improves MFC's compatibility with PCL. The thermal behavior of MFC grafted with different amount of PCL has been investigated using thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). From TGA measurements, the fraction of PCL in MFC-PCL samples was estimated to 16%, 19%, and 21%. The crystallization and melting behavior of free PCL and MFC-PCL were studied with DSC, and a significant difference was observed regarding melting points, crystallization temperature, degree of crystallinity, as well as the time required for crystallization. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2991 / 2997

页数：7

共 36 条

[1] Water-in-oil emulsions stabilized by hydrophobized microfibrillated cellulose [J].

Andresen, Martin ;

Stenius, Per .

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY, 2007, 28 (06) :837-844

[2] Properties and characterization of hydrophobized microfibrillated cellulose [J].

Andresen, Martin ;

Johansson, Leena-Sisko ;

Tanem, Bjorn Steinar ;

Stenius, Per .

CELLULOSE, 2006, 13 (06) :665-677

[3] Steric stabilization of a cellulose microcrystal suspension by poly(ethylene glycol) grafting [J].

Araki, J ;

Wada, M ;

Kuga, S .

LANGMUIR, 2001, 17 (01) :21-27

[4]

Biela T, 2002, MACROMOL SYMP, V183, P1, DOI 10.1002/1521-3900(200207)183:1<1::AID-MASY1>3.0.CO

[5]

2-Q

[6] ATRP grafting from cellulose fibers to create block-copolymer grafts [J].

Carlmark, A ;

Malmström, EE .

BIOMACROMOLECULES, 2003, 4 (06) :1740-1745

[7] Atom transfer radical polymerization from cellulose fibers at ambient temperature [J].

Carlmark, A ;

Malmström, E .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (06) :900-901

[8] CRYSTALLIZATION OF POLY(EPSILON-CAPROLACTONE) [J].

CHYNOWETH, KR ;

STACHURSKI, ZH .

POLYMER, 1986, 27 (12) :1912-1916

[9] NANOCOMPOSITE MATERIALS FROM LATEX AND CELLULOSE WHISKERS [J].

FAVIER, V ;

CANOVA, GR ;

CAVAILLE, JY ;

CHANZY, H ;

DUFRESNE, A ;

GAUTHIER, C .

POLYMERS FOR ADVANCED TECHNOLOGIES, 1995, 6 (05) :351-355

[10] Stable suspensions of partially silylated cellulose whiskers dispersed in organic solvents [J].

Goussé, C ;

Chanzy, H ;

Excoffier, G ;

Soubeyrand, L ;

Fleury, E .

POLYMER, 2002, 43 (09) :2645-2651

← 1 2 3 4 →