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Characterization of poly(butylene succinate)/poly(lactic acid) blends with in-situ sub-micron fibers and intercalation structure manufacturing by volumetric pulsating elongation flow

Tan, Ling-cao; Qu, Jin-ping

(Natural) polymersApplicationCharacterizationCustomer publicationsMaterialOrientation analysisPolymer researchSAXSTechnique

Characterization of poly(butylene succinate)/poly(lactic acid) blends with in-situ sub-micron fibers and intercalation structure manufacturing by volumetric pulsating elongation flow

Tan, Ling-cao; Qu, Jin-ping

In-situ fibrillation and intercalation structure are favoring to improve the properties of polymer blends. In this work poly(butylene succinate)/poly(lactic acid) blends containing such structures have been achieved via volume pulsating elongation flow instead of strong shear. The mechanical properties, crystallization properties and micromorphology of the extruders were well investigated. The…
A comparison of non-isocyanate and HDI-based poly(ether urethane): Structure and properties

Shen, Ziyun; Zheng, Liuchun; Li, Chuncheng; Liu, Guoming; Xiao, Yaonan; Wu, Shaohua; Liu, Jiajian; Zhang, Bo

(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPolymer researchSAXSTechnique

A comparison of non-isocyanate and HDI-based poly(ether urethane): Structure and properties

Shen, Ziyun; Zheng, Liuchun; Li, Chuncheng; Liu, Guoming; Xiao, Yaonan; Wu, Shaohua; Liu, Jiajian; Zhang, Bo

DMC-derived poly (ether urethanes) were prepared via isocyanate-free route. The transurethanization reaction of the non-isocyanate route needs higher temperature as compared with the traditional route. There may be some unknown side reactions under high temperature which lead to changes in chemical structure and subsequent thermal and mechanical properties of the…
How rheological behaviors of concentrated starch affect graft copolymerization of acrylamide and resultant hydrogel

Bao, Xianyang; Yu, Long; Shen, Shirley; Simon, George P.; Liu, Hongsheng; Chen, Ling

(Hydro)gelsApplicationCharacterizationCustomer publicationsFoodFood scienceFractal dimensionMaterialSAXSShapeSizeTechnique

How rheological behaviors of concentrated starch affect graft copolymerization of acrylamide and resultant hydrogel

Bao, Xianyang; Yu, Long; Shen, Shirley; Simon, George P.; Liu, Hongsheng; Chen, Ling

Corn starches with different amylose/amylopectin ratios were used to explore the effect of rheological behaviors of concentrated system on the graft copolymerization of acrylamide and resultant hydrogels, which sheds a light on their reactive extrusion process. The viscoelastic moduli of starch melts increased with increasing amylose content (AC), leading to…
Light-induced healing in azobenzene bridged silsesquioxanes

Galante, María J.; Zucchi, Ileana A.; Oyanguren, Patricia A.; Sáiz, Luciana M.

(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPolymer researchSAXSSelf-assembled materialTechnique

Light-induced healing in azobenzene bridged silsesquioxanes

Galante, María J.; Zucchi, Ileana A.; Oyanguren, Patricia A.; Sáiz, Luciana M.

Intrinsic healable polymers are materials capable of repairing itself through its chemical nature, in order to improve stability and durability and to restore the lost functionalities or properties. In this study, azobenzene (AZO) moieties were incorporated into a previously reported bridged silsesquioxane based on the reaction of isocyanatepropyltriethoxysilane (IPTS) with…
Unlocking Simultaneously the Temperature and Electrochemical Windows of Aqueous Phthalocyanine Electrolytes

Huang, Zhifeng; Zhang, Peng; Gao, Xinpei; Henkensmeier, Dirk; Passerini, Stefano; Chen, Ruiyong

ApplicationCharacterizationCustomer publicationsInorganic materialMaterialPhase analysisRenewable energySAXSTechniqueTemperature

Unlocking Simultaneously the Temperature and Electrochemical Windows of Aqueous Phthalocyanine Electrolytes

Huang, Zhifeng; Zhang, Peng; Gao, Xinpei; Henkensmeier, Dirk; Passerini, Stefano; Chen, Ruiyong

The change from organic solvents to aqueous solvents for safe and robust battery electrolytes is desirable for electrochemical energy storage. Thermodynamically, water has an electrochemical stability window of 1.23 V, and pure water freezes at 0 °C. Such properties clearly restrict the high-voltage applications and temperature adaptability of aqueous electrolytes.…
De-symmetrizing periodically grafted amphiphilic copolymers: design, synthesis and generation of Janus folded chains

Sarkar, Ramkrishna; Gowd, E. Bhoje; Ramakrishnan, S.

(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPhase analysisPolymer researchSAXSTechniqueTemperatureWAXS

De-symmetrizing periodically grafted amphiphilic copolymers: design, synthesis and generation of Janus folded chains

Sarkar, Ramkrishna; Gowd, E. Bhoje; Ramakrishnan, S.

Periodically grafted amphiphilic copolymers (PGACs) were earlier shown to fold in a zigzag fashion to enable segregation of the two immiscible segments, namely the backbone and the pendant segments; crystallization of one or both segments led to the formation of a lamellar structure with the two segments located in alternate…