MICROSTRUCTURAL CHARACTERIZATION AND THERMAL ANALYSIS OF BLOCK COPOLYMER OF METHYL METHACRYLATE AND n-BUTYL ACRYLATE

被引：8
|
作者：
Monroy-Barreto, Minerva [1 ]
Esturau-Escofet, Nuria [2 ]
Briseno-Teran, Manuel [1 ]
del Carmen Perez-Vazquez, Maria [1 ]
机构：
[1] Ctr Invest Polimeros CIP, Grp COMEX, Mpio Acolman Nezahualcoy 55885, Estado De Mexic, Mexico
[2] Univ Nacl Autonoma Mexico, Fac Quim, Unidad Apoyo Invest USAI, Mexico City 04510, DF, Mexico
来源：
INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION | 2012年 / 17卷 / 07期
关键词：
Block copolymer; FT-IR; MDSC; Methyl methacrylate; Microstructure; n-Butyl acrylate; NMR; DIFFERENTIAL SCANNING CALORIMETRY; 2-DIMENSIONAL NMR-SPECTROSCOPY; GLASS-TRANSITION TEMPERATURE; STEREOCHEMICAL STRUCTURE; POLY(ACRYLIC ACID); C-13; NMR; POLYMERIZATION; TACTICITY; DSC;
D O I：
10.1080/1023666X.2012.704556
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Microstructural characterization of synthetic copolymers can be employed to establish structure-property relationships for various practical applications. Acrylic copolymers are economical and suitable for processing into interesting materials for diverse applications. The relative composition, sequence distribution, and configuration of block copolymer monomeric units of poly(methyl methacrylate-b-n-butyl acrylate) (PMMA-b-nBA) was studied by the combination of Fourier transform-infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR) spectroscopy, and modulated differential scanning calorimetry (MDSC). Configurational assignments of MMA and BA blocks were determined from C-13 NMR and heteronuclear single-quantum correlation spectroscopy (HSQC), respectively. The alpha-carbon resonances from methacrylic units appear from downfield to upfield in the order mm, rm/mr, rr, whereas they appear in the opposite order in acrylic units.
引用
收藏
页码：515 / 523
页数：9
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