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Toughening anti-overswelling semicrystalline polymer hydrogels with ultra-small hydrophobic nanoparticles

Meng, Xiaohui; Wu, Teng; Qiu, Dong

 (Hydro)gels(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPolymer researchSAXSTechniqueWAXS

Toughening anti-overswelling semicrystalline polymer hydrogels with ultra-small hydrophobic nanoparticles

Meng, Xiaohui; Wu, Teng; Qiu, Dong

Semicrystalline polymer hydrogels (SC-gels) are intrinsically electrolyte tolerant and over-swelling resistant, emerging as promising candidates for applications in solution environments. However, SC-gels with high mechanical strength are usually brittle. In the present work, by introducing ultra-small hydrophobic nanoparticles, highly-stretchable SC-gels (15 times of its original length) with…
Cell wall structure and composition is affected by light quality in tomato seedlings

Falcioni, Renan; Moriwaki, Thaise; Perez-Llorca, Marina; Munné-Bosch, Sergi; Gibin, Mariana Sversut; Sato, Francielle; Pelozo, Andressa; Pattaro, Mariana Carmona; Giacomelli, Marina Ellen; Rüggeberg, Markus; Antunes, Werner Camargos

 (Natural) polymersApplicationCharacterizationCustomer publicationsFibersFood scienceMaterialOrientation analysisOtherSAXSTechnique

Cell wall structure and composition is affected by light quality in tomato seedlings

Falcioni, Renan; Moriwaki, Thaise; Perez-Llorca, Marina; Munné-Bosch, Sergi; Gibin, Mariana Sversut; Sato, Francielle; Pelozo, Andressa; Pattaro, Mariana Carmona; Giacomelli, Marina Ellen; Rüggeberg, Markus; Antunes, Werner Camargos

Light affects many aspects of cell development. Tomato seedlings growing at different light qualities (white, blue, green, red, far-red) and in the dark displayed alterations in cell wall structure and composition. A strong and negative correlation was found between cell wall thickness and hypocotyl growth. Cell walls was thicker under…
Effect of Macromolecular Chain Movement and the Interchain Interaction on Crystalline Nucleation and Spherulite Growth of Polylactic Acid under High-Pressure CO2

Li, Shaojie; Chen, Taoyi; Liao, Xia; Han, Weiqiang; Yan, Zhihui; Li, Junsong; Li, Guangxian

 (Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPolymer researchSAXSTechnique

Effect of Macromolecular Chain Movement and the Interchain Interaction on Crystalline Nucleation and Spherulite Growth of Polylactic Acid under High-Pressure CO2

Li, Shaojie; Chen, Taoyi; Liao, Xia; Han, Weiqiang; Yan, Zhihui; Li, Junsong; Li, Guangxian

Crystallization behavior of polylactic acid (PLA) under CO2 is meaningful due to its effect on foaming behavior during CO2 foaming, while present studies mainly concentrated on overall crystallization behavior. In this study, the effect of CO2 on nucleation and spherulite growth of PLA crystals was in situ investigated separately. During…
Tailoring the pore size and permeability of isoporous membranes through blending with poly(ethylene glycol): Toward the balance of macro- and microphase separation

Yang, Cao-ying; Zhu, Guo-dong; Yi, Zhuan; Qiu, Ya-yu; Liu, Li-fen; Gao, Cong-jie

 (Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialOtherPolymer researchSAXSSelf-assembled materialTechnique

Tailoring the pore size and permeability of isoporous membranes through blending with poly(ethylene glycol): Toward the balance of macro- and microphase separation

Yang, Cao-ying; Zhu, Guo-dong; Yi, Zhuan; Qiu, Ya-yu; Liu, Li-fen; Gao, Cong-jie

Isoporous membranes prepared from the combination of self-assembly and non-solvent induced phase inversion (SNIPS) were known for their asymmetric structures that were characterized with an isoporous top layer and porous/interconnected sublayer. This unique feature provides an opportunity to tailor the structure on toplayer and sublayer separately or synchronously by adjusting…
Photo-degradation of polyethylene under stress: A successive self-nucleation and annealing (SSA) study

Liu, Qiang; Liu, Shixiang; Lv, Yadong; Huang, Yajiang; Kong, Miqiu; Yang, Qi; Li, Guangxian

 (Natural) polymersApplicationCharacterizationCustomer publicationsFractal dimensionMaterialOrientation analysisPhase analysisPolymer researchSAXSTechnique

Photo-degradation of polyethylene under stress: A successive self-nucleation and annealing (SSA) study

Liu, Qiang; Liu, Shixiang; Lv, Yadong; Huang, Yajiang; Kong, Miqiu; Yang, Qi; Li, Guangxian

Successive self-nucleation and annealing (SSA) technique based on calorimetry is utilized to reveal the effect of uniaxial tensile stress on the photo-oxidation of high density polyethylene (HDPE). Stress-induced acceleratory and inhibitory effects on HDPE are confirmed by analyzing the newly formed melting peaks at low temperatures and the gradually disappeared…
Physicochemical Properties of the Binary Mixtures of CuII-Containing Chelate-Based Ionic Liquids with Linear Alcohols

Zhang, Songna; Wang, Yongtao; Wang, Xinyu; Yao, Jia; Li, Haoran

 ApplicationCharacteristic dimensionCharacterizationCustomer publicationsOtherSAXSTechnique

Physicochemical Properties of the Binary Mixtures of CuII-Containing Chelate-Based Ionic Liquids with Linear Alcohols

Zhang, Songna; Wang, Yongtao; Wang, Xinyu; Yao, Jia; Li, Haoran

Systematic measurements (densities, viscosities, conductivities) combined with small-angle X-ray scattering (SAXS) experiments were performed for binary mixtures of CuII-containing chelate-based ionic liquid (ChIL) with linear alcohols. The experimental results were explained by disruption of alcohols to ionic aggregation of the ChILs. Viscosity deviations (??) of four binary systems all show…
Transformation from form II to form I accelerated by oriented lamellae in Polybutene-1

Chen, Jinlong; Wang, Binghua; Sun, Taicheng; Xu, Jianwei; Chen, Jingbo; Zhang, Bin

 (Natural) polymersApplicationCharacterizationCrystalline fractionCustomer publicationsMaterialOrientation analysisPhase analysisPolymer researchSAXSTechniqueWAXS

Transformation from form II to form I accelerated by oriented lamellae in Polybutene-1

Chen, Jinlong; Wang, Binghua; Sun, Taicheng; Xu, Jianwei; Chen, Jingbo; Zhang, Bin

Promoting the transformation from Form II to Form I in polybutene-1 (PB-1) is deemed to be crucial and demanded for commercial applications. The mechanism of phase transition is previously described in terms of thermal or mechanical stress applied between the crystalline and amorphous regions. Here, we find that the structural…
Microstructure Induced Rigidity of Polysiloxane Yielding Hierarchical Self-Assembly of Alkyl Side Chains

Sarkar, Alok; Negi, Lalit Mohan Singh; Lewis, Kenrick M.; Vasimalai, Nagamalai; Gowd, E. Bhoje; Dasgupta, Debarshi

 (Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPolymer researchSAXSTechniqueTemperatureWAXS

Microstructure Induced Rigidity of Polysiloxane Yielding Hierarchical Self-Assembly of Alkyl Side Chains

Sarkar, Alok; Negi, Lalit Mohan Singh; Lewis, Kenrick M.; Vasimalai, Nagamalai; Gowd, E. Bhoje; Dasgupta, Debarshi

The influence of a backbone microstructure on the side chain crystallization of a comb-like polymer is analyzed systematically using a tailor-made random versus block siloxane copolymer system. While the side alkyl chains of the random siloxane undergo a stepwise order–disorder (OD) transition to form well-ordered orthorhombic structure at low temperature,…
Gradient crystallinity and its influence on the poly(vinylidene fluoride)/poly(methyl methacrylate) membrane-derived by immersion precipitation method

Remanan, Sanjay; Ghosh, Sabyasachi; Das, Tushar Kanti; Sharma, Maya; Bose, Madhuparna; Bose, Suryasarathi; Das, Amit Kumar; Das, Narayan Chandra

 (Natural) polymersApplicationCharacterizationCompositesCrystalline fractionCustomer publicationsMaterialPhase analysisPolymer researchSAXSTechnique

Gradient crystallinity and its influence on the poly(vinylidene fluoride)/poly(methyl methacrylate) membrane-derived by immersion precipitation method

Remanan, Sanjay; Ghosh, Sabyasachi; Das, Tushar Kanti; Sharma, Maya; Bose, Madhuparna; Bose, Suryasarathi; Das, Amit Kumar; Das, Narayan Chandra

Herein, phase inversion poly(vinylidene fluoride)/poly(methyl methacrylate) (PVDF/PMMA) microporous membranes were prepared at various PMMA concentration by immersion precipitation method. Increment in the PMMA concentration has a significant influence in the PVDF membrane crystallinity, which is studied by differential scanning calorimeter, X-ray diffractometer, and small-angle X-ray scattering…
Crystallization-driven microstructure changes during microphase separation for environment-friendly thermoplastic triblock copolymer elastomers

Ding, Shuangshuang; Fang, Chu; Wang, Xuehui; Wang, Zhigang

 (Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPhase analysisPolymer researchSAXSTechnique

Crystallization-driven microstructure changes during microphase separation for environment-friendly thermoplastic triblock copolymer elastomers

Ding, Shuangshuang; Fang, Chu; Wang, Xuehui; Wang, Zhigang

A study on the crystallization-driven microstructure changes during microphase separation for a series of high transparent semicrystalline thermoplastic triblock copolymer elastomers (TBCPEs), polylactide-b-polyisoprene-b-polylactide (PLA-b-PI-b-PLA) was conducted in this work. A series of PLA-b-PI-b-PLA TBCPEs with different molecular masses of PI midblock and same molecular mass of PLA end…
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