Synthesis and characterization of network liquid crystal elastomers and thermosets
β Scribed by Yinggang Jia; Baoyan Zhang; Enle Zhou; Zhiliu Feng; Baoling Zang
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 268 KB
- Volume
- 85
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract Sideβchain liquidβcrystalline (SCLC) polyurethane elastomers with methoxybiphenyl mesogens pendant on the chain extenders were synthesized by the conventional prepolymer technique and condensation reaction. Two SCLC polyurethanes with mesogens having spacers of six and eight methylene u
A series of liquid crystal a-[bis(2-hydroxyethyl)amino]-v-(4-nitroazobenzene-4-oxy)alkanes (Cn-diol) with different alkyl chain length has been synthesized. All Cn-diols exhibit a smectic phase that has been identified by means of polarizing microscopy and differential scanning calorimetry. These co
## Abstract A series of new smectic and cholesteric liquidβcrystalline elastomers were prepared by graft polymerization of mesogenic monomer with the chiral and nonmesogenic crosslinking agent using polymethylhydrosiloxane as backbone. The chemical structures of the monomers and polymers obtained w
Novel type of mesogenic chain extenders used in this study are N,NΠ-bis(4hydroxyphenyl)-3,4,3Π,4Π-biphenyldicarboxyimide (BPDI) and N, NΠ-bis[4-(6-hydroxyhexyloxy) phenyl]-3,4,3Π,4Π-biphenyldicarboxyimide (BHDI). BHDI has a flexible spacer of 6-methylene units but BPDI does not. The liquid crystalli