Influence of molecular weight on liquid crystalline behavior of linear and star mesogen‐jacketed liquid crystal polymers
作者： Xingzhu Wang , Hailiang Zhang , Erqiang Chen , Xiayu Wang , Qifeng Zhou
DOI: 10.1002/POLA.20743
关键词:
摘要: A series of novel multi-armed (di-, tri- and tetra-armed) mesogen-jacketed liquid crystal polymers (MJLCPs) were synthesized by atom transfer radical polymerization (ATRP) {2,5-bis[(4-methoxyphenyl)oxycarbonyl]styrene}(MPCS) using di-, tetrafunctional initiator, respectively. The results show that the number average molecular weight (M n,GPC ) was increased versus monomer conversion, polydispersities quite narrow ( 1.87 x 10 4 g/mol, 1.84 × 2.69 3.68 which initiated coil difunctional hard trifunctional initiator All crystalline phase found to be stable up decomposition temperature these MJLCPs.
core.ac.uk
harvard.edu
sci-hub.se 参考文章(39)
CJ Hawker, JMJ Frechet, Three-dimensional dendritic macromolecules: design, synthesis, and properties Springer, Dordrecht. pp. 290- 330 ,(1995) , 10.1007/978-94-011-0607-8_8
Otto Vogl, Koichi Hatada, Tatsuki Kitayama, Macromolecular design of polymeric materials M. Dekker. ,(1997)
Susanne Hoff Goodson, Bruce M. Novak, Synthesis and Characterization of Wormlike Three-Arm Poly(n-hexyl isocyanate) Star Polymers Macromolecules. ,vol. 34, pp. 3849- 3855 ,(2001) , 10.1021/MA991692I
Padma Gopalan, Yuanming Zhang, Xuefa Li, Ulrich Wiesner, Christopher K. Ober, Liquid Crystalline Rod−Coil Block Copolymers by Stable Free Radical Polymerization: Synthesis, Morphology, and Rheology Macromolecules. ,vol. 36, pp. 3357- 3364 ,(2003) , 10.1021/MA021573U
Masami Kamigaito, Tsuyoshi Ando, Mitsuo Sawamoto, Metal-catalyzed living radical polymerization. Chemical Reviews. ,vol. 101, pp. 3689- 3746 ,(2001) , 10.1021/CR9901182
Qifeng Zhou, Xiao Qing Duan, Yaei Liu, Transformation of a monotropic liquid crystalline polymer to an enantiotropic one by increasing molecular weight of the polymer Macromolecules. ,vol. 19, pp. 247- 249 ,(1986) , 10.1021/MA00155A042
Tomikazu Sasaki, Emil T. Kaiser, Helichrome: synthesis and enzymic activity of a designed hemeprotein Journal of the American Chemical Society. ,vol. 111, pp. 380- 381 ,(1989) , 10.1021/JA00183A065
Jiro Ueda, Masami Kamigaito, Mitsuo Sawamoto, Calixarene-Core Multifunctional Initiators for the Ruthenium-Mediated Living Radical Polymerization of Methacrylates1 Macromolecules. ,vol. 31, pp. 6762- 6768 ,(1998) , 10.1021/MA980608G
I. R. Herbert, A. D. H. Clague, Detailed structural analysis of polysiloxane antifoam agents using carbon-13 and silicon-29 NMR spectroscopy Macromolecules. ,vol. 22, pp. 3267- 3275 ,(1989) , 10.1021/MA00198A013
Padma Gopalan, Christopher K. Ober, Highly Reactive 2,5-Disubstituted Styrene-Based Monomer Polymerized via Stable Free Radical Polymerization: Effect of Substitution and Liquid Crystallinity on Polymerization Macromolecules. ,vol. 34, pp. 5120- 5124 ,(2001) , 10.1021/MA002212M