Category

Polymer research

(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPolymer researchSAXSTechnique

Sustainable network polymer via dynamic metal ionic crosslinks

Wang, Yanjun; Lei, Yuan; Zhou, Changlin; Wu, Bo; Jiang, Yuanyuan; Lei, Jingxin

Incorporating reversible dynamic linkages into the polymer networks endows traditional thermosets with recyclability and reprocessability. However, the facile preparation of recyclable polymer networks with suitable stability and acceptable cost is still a challenge. Among various dynamic linkages, ionic bonds promise a rational dynamic linkage in virtue of suitable stability and…
sergio.rodrigues@xenocs.com
25 November 2019
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPolymer researchSAXSSelf-assembled materialTechnique

Organic acids interacting with block copolymers have broadened the window that retains isoporous structures

Zhu, Guo-Dong; Yin, Yu-Rong; Li, Zhen-Nan; Qiu, Ya-Yu; Yi, Zhuan; Gao, Cong-Jie

Evaporation is significantly important for the preparation of isoporous membranes from self-assembly and non-solvent induced phase separation (SNIPS). Unfortunately, the time of solvent evaporation that retains isoporous structures is usually rather short, which causes many challenges to fabricate membranes with repeatable and controllable isoporous structures. In the current work, we…
sergio.rodrigues@xenocs.com
25 November 2019
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsFibersMaterialOtherPolymer researchSAXSTechnique

Effect of side methyl from mixed diamine chain extenders on microphase separation and morphology of polyurethane fiber

You, Gexin; Wang, Jiaqi; Wang, Chunyan; Zhou, Xulin; Zhou, Xiuwen; Liu, Lina

Polyurethane fiber (PUF) can be used as self-adaptive material in the field of nuclear physics and its properties depended on the molecular structure. To explore the effect of side methyl on its degree of microphase separation (DPS) and morphology for PUF, ethanediamine and 1,2-propylene diamine with different molar ratio were…
sergio.rodrigues@xenocs.com
25 November 2019
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCompositesCustomer publicationsMaterialPolymer researchSAXSTechnique

Simultaneously enhancing of wear-resistant and mechanical properties of polyurethane composite based on the selective interaction of fluorinated graphene derivatives

He, Taijun; Wang, Guitu; Wang, Yixing; Liu, Yang; Lai, Wenchuan; Wang, Xu; Feng, Yiyu; Liu, Xiangyang

Simultaneously enhancing of wear-resistant and mechanical properties of the thermoplastic polyurethane (TPU) is important for its wider application. Herein, fluorinated graphene (FG) was proposed and respectively functionalized by two amine-terminated molecules: aliphatic poly (oxypropylene) diamine (D230) (compatible with soft segment (SS) of TPU), and aromatic phenylamine (PA) (compatible with…
sergio.rodrigues@xenocs.com
25 November 2019
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPhase analysisPolymer researchSAXSSelf-assembled materialTechniqueTemperatureWAXS

Topochemical polymerization of hierarchically ordered diacetylene monomers within the block copolymer domains

Krishnan, Deepthi; B, Amal Raj R.; Gowd, E. Bhoje

Integration of polymerizable small molecules within block copolymer based supramolecules provides a new strategy to generate functional materials. Herein we report hydrogen-bonding complexes of photopolymerizable 10,12-pentacosadyionic acid (PCDA) and polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP). We systematically investigate how annealing conditions affect the hierarchical ordering and…
sergio.rodrigues@xenocs.com
25 November 2019
(Natural) polymersApplicationCharacterizationCustomer publicationsMaterialPhase analysisPolymer researchSelf-assembled materialTechniqueWAXS

How cyclic chain topology can reduce the crystallization rate of poly(3-hexylthiophene) and promote the formation of liquid crystalline phases in comparison with linear analogue chains

Maiz, Jon; Liu, Guoming; Ruipérez, Fernando; Delbosc, Nicolas; Coulembier, Olivier; Wang, Dujin; Müller, Alejandro J.

We have studied how cyclic topology affects the crystallization and morphology of π-conjugated poly(3-hexylthiophene) (P3HT) molecules by comparing linear and cyclic analogues for the first time, with three different chain lengths. We employ a range of experimental techniques including wide-angle X-ray scattering (WAXS), polarized light optical microscopy (PLOM), differential scanning…
sergio.rodrigues@xenocs.com
25 November 2019
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCompositesCustomer publicationsMaterialPolymer researchSAXSTechnique

A robust self-healing polyurethane elastomer: From H-bonds and stacking interactions to well-defined microphase morphology

Fan, Cheng-Jie; Huang, Zi-Chun; Li, Bei; Xiao, Wen-Xia; Zheng, En; Yang, Ke-Ke; Wang, Yu-Zhong

Self-healing materials have attracted considerable attention because of their improved safety, lifetime, energy efficiency and environmental impact. Supramolecular interactions have been extensively considered in the field of self-healing materials due to their excellent reversibility and sensitive responsiveness to environmental stimuli. However, development of a polymeric material with good…
sergio.rodrigues@xenocs.com
25 November 2019
(Natural) polymersApplicationCharacterizationCustomer publicationsMaterialOrientation analysisPolymer researchSAXSTechnique

Adding Symmetry: Cylindrically Confined Crystallization of Nylon-6

Yu, Shichen; Lai, Ziwei; Jinnai, Hiroshi; Zeng, Xingming; Ageishi, Masaki; Lotz, Bernard; Cheng, Stephen Z. D.; Zheng, Nan; Zhang, Shuailin; Feng, Xueyan; Cao, Yan

It has been known that twin symmetry occurs in small metal crystals and it could lead to ultrahigh mechanical properties. In this research, we first found out the formation of nanoscale twin crystals in polymers under cylindrical confinement. The nylon-6 nanorods are fabricated by infiltrating the melt into cylindrical nanopores…
sergio.rodrigues@xenocs.com
25 November 2019
ApplicationCharacterizationCompositesCustomer publicationsMaterialPhase analysisPolymer researchTechniqueWAXS

Room-Temperature Ferromagnetic Sr3YCo4O10+δ and Carbon Black-Reinforced Polyvinylidenefluoride Composites toward High-Performance Electromagnetic Interference Shielding

Lalan, Vidhya; Puthiyedath Narayanan, Aparna; Surendran, Kuzhichalil Peethambharan; Ganesanpotti, Subodh

In this study, we fabricated composites of conducting carbon black (CB), room-temperature ferromagnetic Sr3YCo4O10+δ (SYCO) and polyvinylidenefluoride (PVDF) by the solution mixing and coagulation method for the first time. During the nucleation process of PVDF, the presence of SYCO and CB individually facilitates the crystallization of polar β and semipolar…
sergio.rodrigues@xenocs.com
25 November 2019
(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…
sergio.rodrigues@xenocs.com
25 November 2019