Main observation and conclusion Polymerization-induced self-assembly(PISA)is an effective method to prepare block copolymer(BCP)particles with various morphologies.However,BCPs with inverse bicontinuous phase structur...Main observation and conclusion Polymerization-induced self-assembly(PISA)is an effective method to prepare block copolymer(BCP)particles with various morphologies.However,BCPs with inverse bicontinuous phase structure have been rarely prepared via PISA.Herein,we report the preparation of particles.展开更多
A new class of benzodioxocycloalkane-based （C8-C10） liquid crystals were prepared. The impact of ring （C8- C10） as end group was investigated. The 8--9 membered ring derivatives, 3a--3b, exhibited the nematic phas...A new class of benzodioxocycloalkane-based （C8-C10） liquid crystals were prepared. The impact of ring （C8- C10） as end group was investigated. The 8--9 membered ring derivatives, 3a--3b, exhibited the nematic phases （N） The mesomorphic behaviors were weakened with increasing the size of the ring. For the fluorinated medium ring （C8--C10） 3d--3f, it was found only the fluorinated ten membered ring 3f showed the LC phases behaviours. Modification of the ring size with different length alkyl groups and variation of the alkyl to polyfluoroalkyl markedly influenced the properties of these compounds.展开更多
The phase behaviour of lanthanide(Ⅲ) dodecylsulphates, Ln(C 12 H 25 SO 4) 3, by thermo optical microscopy using Lawrence penetration technique was investigated. The lyotropic phase behaviour of lanthanide(...The phase behaviour of lanthanide(Ⅲ) dodecylsulphates, Ln(C 12 H 25 SO 4) 3, by thermo optical microscopy using Lawrence penetration technique was investigated. The lyotropic phase behaviour of lanthanide(Ⅲ) dodecylsulphates in ethylene glycol water in mixtures hereof, depends on the composition of the solvent. For pure ethylene glycol and mixtures of ethylene glycol and water three different mesophases are formed, i.e. a lamellar, a cubic and a hexagonal phase, whereas when water is used as solvent no cubic phase is formed. The size of the lanthanide ion has no influence on the mesomorphism of these metallomesogens, although the smaller the lanthanide ion the lower the solubility.展开更多
Main observation and conclusion Fluorescent columnar liquid-crystalline polymers have attracted intensive attention due to their unique features that can be applied in many fields.However,the utilization of molecular ...Main observation and conclusion Fluorescent columnar liquid-crystalline polymers have attracted intensive attention due to their unique features that can be applied in many fields.However,the utilization of molecular engineering to achieve efficient fluorescence tuning has rarely been resolved.展开更多
Polymerization-induced cooperative assembly(PICA)is reported to efficiently access inverse bicontinuous mesophases within particles consisting of amphiphilic block copolymers(BCPs)and solvophobic copolymers.Reversible...Polymerization-induced cooperative assembly(PICA)is reported to efficiently access inverse bicontinuous mesophases within particles consisting of amphiphilic block copolymers(BCPs)and solvophobic copolymers.Reversible addition-fragmentation chain transfer(RAFT)dispersion alternating copolymerization of styrene and pentafluorostyrene is conducted in 2%v/v toluene/ethanol by simultaneously using poly(N,N-dimethylacrylamide)(PDMA29)as a macromolecular chain transfer agent(macro-CTA)and small molecule CTA.展开更多
基金Financial support from the National Natural Science Founda-ton of China(No.21674059)the Fundamental Research Funds far the Central Universities is thanked.
文摘Main observation and conclusion Polymerization-induced self-assembly(PISA)is an effective method to prepare block copolymer(BCP)particles with various morphologies.However,BCPs with inverse bicontinuous phase structure have been rarely prepared via PISA.Herein,we report the preparation of particles.
基金Acknowledgement The authors gratefully acknowledge the support of the National Natural Science Foundation of China （No. 21272080）, Department of Science and Technology, Guangdong Province （Nos. 2010A020507001-76, 5300410, FIPL-05-003）, and the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry.
文摘A new class of benzodioxocycloalkane-based （C8-C10） liquid crystals were prepared. The impact of ring （C8- C10） as end group was investigated. The 8--9 membered ring derivatives, 3a--3b, exhibited the nematic phases （N） The mesomorphic behaviors were weakened with increasing the size of the ring. For the fluorinated medium ring （C8--C10） 3d--3f, it was found only the fluorinated ten membered ring 3f showed the LC phases behaviours. Modification of the ring size with different length alkyl groups and variation of the alkyl to polyfluoroalkyl markedly influenced the properties of these compounds.
文摘The phase behaviour of lanthanide(Ⅲ) dodecylsulphates, Ln(C 12 H 25 SO 4) 3, by thermo optical microscopy using Lawrence penetration technique was investigated. The lyotropic phase behaviour of lanthanide(Ⅲ) dodecylsulphates in ethylene glycol water in mixtures hereof, depends on the composition of the solvent. For pure ethylene glycol and mixtures of ethylene glycol and water three different mesophases are formed, i.e. a lamellar, a cubic and a hexagonal phase, whereas when water is used as solvent no cubic phase is formed. The size of the lanthanide ion has no influence on the mesomorphism of these metallomesogens, although the smaller the lanthanide ion the lower the solubility.
基金This work was supported by the National Natural Science Foundation of China(21805228,22022107 and 22071197)China Postdoctoral Science Foundation(2018M633563)Natural Science Basic Research Plan in Shaanxi Province of China(2020JC-20).
文摘Main observation and conclusion Fluorescent columnar liquid-crystalline polymers have attracted intensive attention due to their unique features that can be applied in many fields.However,the utilization of molecular engineering to achieve efficient fluorescence tuning has rarely been resolved.
基金support by the National Natural Science Foundation of China(nos.51733003 and 21674059)the Fundamental Research Funds for the Central Universities are thanked.
文摘Polymerization-induced cooperative assembly(PICA)is reported to efficiently access inverse bicontinuous mesophases within particles consisting of amphiphilic block copolymers(BCPs)and solvophobic copolymers.Reversible addition-fragmentation chain transfer(RAFT)dispersion alternating copolymerization of styrene and pentafluorostyrene is conducted in 2%v/v toluene/ethanol by simultaneously using poly(N,N-dimethylacrylamide)(PDMA29)as a macromolecular chain transfer agent(macro-CTA)and small molecule CTA.
