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Phase analysis

Structure and self-reinforcing mechanism of biaxially oriented polyethylene pipes produced by solid phase die drawing

Kong, Chen; Wang, Yujie; Ye, Lin; Zhao, Xiaowen

(Natural) polymersApplicationCharacterizationCrystalline fractionCustomer publicationsMaterialOrientation analysisPhase analysisPolymer researchSAXSTechnique

Structure and self-reinforcing mechanism of biaxially oriented polyethylene pipes produced by solid phase die drawing

Kong, Chen; Wang, Yujie; Ye, Lin; Zhao, Xiaowen

Biaxially oriented polyethylene (PE) pipes were prepared through solid phase die drawing technology. Drawing speed presented a prominent effect on the hoop draw ratio (DRhoop) and axial draw ratio (DRaxial) of the pipes. For pipe with DRhoop/DRaxial of 2.465/1.182, the tensile strength was improved significantly along hoop direction as well…
Controlling the Supramolecular Polymerization of Donor-Acceptor π-Systems through Hydrogen Bond Intervention

Nair, Vishnu Sukumaran; Vedhanarayanan, Balaraman; Ajayaghosh, Ayyappanpillai

(Hydro)gels(Natural) polymersApplicationCharacterizationCustomer publicationsMaterialPhase analysisPolymer researchTechniqueWAXS

Controlling the Supramolecular Polymerization of Donor-Acceptor π-Systems through Hydrogen Bond Intervention

Nair, Vishnu Sukumaran; Vedhanarayanan, Balaraman; Ajayaghosh, Ayyappanpillai

Supramolecular polymerization of donor-acceptor type molecules leads to mixed or self-sorted assemblies depending on the donor-acceptor strength and extent of noncovalent interactions between the components. Herein, we discuss how competing hydrogen bonding motifs control the supramolecular polymerization pathway of a two-component molecular π-system of oligo(p-phenylenevinylene) (OPV-B and…
A designer fast Li-ion conductor Li6.25PS5.25Cl0.75 and its contribution to the polyethylene oxide based electrolyte

Li, Dabing; Cao, Liuyang; Liu, Chaodeng; Cao, Guoqin; Hu, Junhua; Chen, Jingbo; Shao, Guosheng

(Natural) polymersApplicationCharacterizationCrystalline fractionCustomer publicationsMaterialPhase analysisRenewable energySAXSTechnique

A designer fast Li-ion conductor Li6.25PS5.25Cl0.75 and its contribution to the polyethylene oxide based electrolyte

Li, Dabing; Cao, Liuyang; Liu, Chaodeng; Cao, Guoqin; Hu, Junhua; Chen, Jingbo; Shao, Guosheng

The composite polymer electrolytes, consisting of a flexible matrix and superb fast ion conductor are promising for large-scale practical application in safer lithium metal batteries. The quantification of polymer structure evolution induced by the inorganic filler was rarely reported. Here, a designer cubic argyrodite Li6PS5X sulfide electrolyte was fabricated by…
Isothermal and non-isothermal cold crystallization of tetrabenzofluorene (TBF) molecules

Boopathi, A. A.; Sampath, Srinivasan; Narasimhaswamy, T.

(Natural) polymersApplicationCharacterizationCustomer publicationsMaterialPhase analysisPolymer researchTechniqueTemperatureWAXS

Isothermal and non-isothermal cold crystallization of tetrabenzofluorene (TBF) molecules

Boopathi, A. A.; Sampath, Srinivasan; Narasimhaswamy, T.

Design and synthesis of tetrabenzofluorene (TBF) derivatives are carried out to investigate the isothermal and non-isothermal cold crystallization (CC) behavior by various spectroscopic and analytical techniques. The unprecedented CC exhibited by TBF molecules is examined by systematic modification of alkyl chain length (C8–C18 even carbons) on both sides of the…
Effect of Irradiation and Detection of Long-Lived Polyenyl Radicals in Highly Crystalline Ultra-High Molar Mass Polyethylene (UHMMPE) Fibers

Forster, Amanda L.; Tsinas, Zois; Al-Sheikhly, Mohamad

(Natural) polymersApplicationCharacterizationCustomer publicationsMaterialOrientation analysisPhase analysisPolymer researchTechniqueWAXS

Effect of Irradiation and Detection of Long-Lived Polyenyl Radicals in Highly Crystalline Ultra-High Molar Mass Polyethylene (UHMMPE) Fibers

Forster, Amanda L.; Tsinas, Zois; Al-Sheikhly, Mohamad

To improve properties such as thermal conductivity, low temperature thermal strain, and creep resistance of ultra-high molar mass polyethylene (UHMMPE) fibers, several researchers have previously undertaken efforts to crosslink these fibers using radiation. Ionizing radiation is commonly used to crosslink bulk UHMMPE in other applications, such as artificial joints. However,…
Construction of Dual Orientation Crystalline Structure in Poly(vinyl alcohol)/Graphene Oxide Nano-Composite Hydrogels and Reinforcing Mechanism

Meng, Yeqiao; Zhao, Xiaowen; Ye, Lin

(Hydro)gels(Natural) polymersApplicationCharacterizationCompositesCrystalline fractionCustomer publicationsMaterialOrientation analysisPhase analysisPolymer researchSAXSTechnique

Construction of Dual Orientation Crystalline Structure in Poly(vinyl alcohol)/Graphene Oxide Nano-Composite Hydrogels and Reinforcing Mechanism

Meng, Yeqiao; Zhao, Xiaowen; Ye, Lin

Oriented poly(vinyl alcohol) (PVA)/graphene oxide (GO) nanocomposite hydrogels with different draw ratios were prepared by stretching during a freezing/thawing process. The PVA/GO samples with a draw ratio of 200% had significantly enhanced mechanical properties by formation of a microfibrillar structure, while the tensile strength and compressive modulus respectively reached as…