𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Block copolymer with liquid-crystalline polyacrylate and poly(propylene oxide) segments

✍ Scribed by Aílton S. Gomes; Kalen S. Carvalho; Maurício R. Pinto

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
224 KB
Volume
16
Category
Article
ISSN
1022-1336

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A new route of synthesis of block copolymers was investigated. It involves the polymerization of a side‐chain liquid‐crystalline acrylate and poly(propylene glycol), modified by an esterification reaction with mercaptoacetic acid used as macrotransfer agent, in the presence of 2,2′‐azoisobutyronitrile as initiator. The molecular weight of the liquid‐crystalline blocks is determined by the molar ratio between the reactants.

📜 SIMILAR VOLUMES

Segmented Block Copolymers with Terephth
Segmented Block Copolymers with Terephthalic-Extended Poly(ethylene oxide) Segments
✍ Debby Husken; Jan Feijen; Reinoud J. Gaymans 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 264 KB

## Abstract Segmented block copolymers comprised of flexible PEO segments and monodisperse crystallizable bisestertetraamide segments have been synthesized. The influence of the terephthalic units in the soft phase on the transitions and the thermal mechanical and elastic properties are studied. Th

Synthesis of block and graft copolymers
Synthesis of block and graft copolymers containing liquid-crystalline segments
✍ Gomes, Ailton S; Barbosa, Celton A; Pinto, Mauricio R 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 157 KB 👁 2 views

Block and graft copolymers bearing amorphous or semi-crystalline and liquid-crystalline moieties were obtained by means of non-traditional synthetic routes. Chemical modi®cation of block and graft copolymer precursors by molecular liquid crystals and controlled radical block copolymerization between

Block copolymers of telechelic poly(phen
Block copolymers of telechelic poly(phenylene sulfide) and semiaromatic thermotropic liquid crystalline polyester segments
✍ T. G. Gopakumar; S. Ponrathnam; C. R. Rajan; A. Fradet 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 169 KB 👁 2 views

We report the synthesis and characterization of copolymers comprising poly(phenyl sulfide) (PPS) blocks and semiaromatic thermotropic liquid crystalline polymer (TLCP) blocks. The copolymers, synthesized by melt-transesterification of dicarboxy-terminated poly(phenylene sulfide) with poly(ethylene t