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Kowalczyk A, Kowalczyk K, Gziut K. Synthesis of Monoacryloxypropyl-POSS-based Hybrid Epoxyacrylate Copolymers and Their Application in Thermally Curable Structural Self-Adhesive Tapes. Polymers (Basel) 2019; 11:E2058. [PMID: 31835734 PMCID: PMC6960969 DOI: 10.3390/polym11122058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/07/2019] [Accepted: 12/09/2019] [Indexed: 01/08/2023] Open
Abstract
New organic-inorganic hybrid copolymers (EA-POSSs) based on butyl acrylate, glycidyl methacylate, hydroxybutyl acrylate, acryloiloxybenzophenone and acryloxypropyl-heptaisobutyl-POSS (A-POSS) were prepared via free-radical solution polymerization (FRP) and applied as a component of thermally curable structural self-adhesive tapes (SATs). The EA-POSS with 0.25, 0.5 or 1 mol % of A-POSS exhibited significantly higher dynamic viscosity (ca. +104%), Mw (+61%) and polydispersity (+109%; measured using gel permeation chromatography) as well as lower Tg value (-16 °C) in relation to the A-POSS-free copolymer (EA-0). Differential scanning calorimetry (DSC) measurements (one glass transition process) confirmed statistic chain structure of the EA-POSS materials. Replacement of EA-0 by the EA-POSS copolymers in a SATs recipe caused simultaneous improvement of their self-adhesive features, i.e., adhesion (+70%), tack (+21%) and cohesion (+1590%). Moreover, the POSS-based copolymers improved the shear strength of thermally cured Al/SAT/Al overlap joints; the best mechanical resistance (before and after accelerated ageing tests) was observed for the sample containing 0.5 mol % of A-POSS (an increment range of 50-294% in relation to the A-POSS-free joints). Thermogravimetric analysis (TGA) revealed markedly improved thermal stability of the A-POSS-based SATs as well.
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Affiliation(s)
- Agnieszka Kowalczyk
- Department of Chemical Organic Technology and Polymeric Materials, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, Poland; (K.K.); (K.G.)
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Qin Z, Yang R, Zhang W, Jiao Q. Mechanistic Insights into the Synthesis of Fully Condensed Polyhedral Octaphenylsilsesquioxane. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhao‐Lu Qin
- National Engineering Research Center of Flame Retardant Materials, School of Materials, Beijing Institute of Technology Beijing 100081 China
| | - Rong‐Jie Yang
- National Engineering Research Center of Flame Retardant Materials, School of Materials, Beijing Institute of Technology Beijing 100081 China
| | - Wen‐Chao Zhang
- National Engineering Research Center of Flame Retardant Materials, School of Materials, Beijing Institute of Technology Beijing 100081 China
| | - Qing‐Jie Jiao
- School of Mechatronical Engineering, Beijing Institute of Technology Beijing 100081 China
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Shao Y, Yin H, Jin PF, Jiang YS, Yang S, Zhang WB. Regioisomeric Tandem Triblock Shape Amphiphiles Based on Polyhedral Oligomeric Silsesquioxanes. Chemistry 2018; 24:12389-12396. [PMID: 29603483 DOI: 10.1002/chem.201800895] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Indexed: 11/07/2022]
Abstract
We report the design, synthesis and self-assembly of a series of tandem triblock shape amphiphile regioisomers composed of one rod-like fluorinated polyhedral oligomeric silsesquioxane (FPOSS) cage tethered with two spherical tert-butyl-POSS (tBPOSS) cages in para-, meta-, and ortho-configurations. Precision syntheses are achieved through sequential "click" reactions and the compounds are thoroughly characterized by combined techniques of NMR, FT-IR and MALDI-TOF MS spectroscopy. Only the ortho-isomer forms an ordered lamellae structure induced by the crystallization of perfluoroalkyl-chains and the other two remain amorphous due to frustrated packing by unfavorable regio-configuration. The distinct assembly behaviors of these three regioisomers reflect the delicate influence of a minute structural difference on precision macromolecular assembly.
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Affiliation(s)
- Yu Shao
- Key Laboratory of Polymer Chemistry & Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R. China.,State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai, 201620, P.R. China
| | - Hang Yin
- Key Laboratory of Polymer Chemistry & Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R. China
| | - Peng-Fei Jin
- Key Laboratory of Polymer Chemistry & Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R. China
| | - Yu-Sheng Jiang
- Key Laboratory of Polymer Chemistry & Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R. China
| | - Shuguang Yang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai, 201620, P.R. China
| | - Wen-Bin Zhang
- Key Laboratory of Polymer Chemistry & Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P.R. China
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Morici E, Di Bartolo A, Arrigo R, Dintcheva NT. POSS Grafting on Polyethylene and Maleic Anhydride-Grafted Polyethylene by One-Step Reactive Melt Mixing. ADVANCES IN POLYMER TECHNOLOGY 2016. [DOI: 10.1002/adv.21673] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Elisabetta Morici
- Dipartimento di Ingegneria Civile; Ambientale; Aerospaziale; dei Materiali, Università di Palermo; Viale delle Scienze, Ed. 6 90128 Palermo Italy
| | - Alberto Di Bartolo
- Dipartimento di Ingegneria Civile; Ambientale; Aerospaziale; dei Materiali, Università di Palermo; Viale delle Scienze, Ed. 6 90128 Palermo Italy
| | - Rossella Arrigo
- Dipartimento di Ingegneria Civile; Ambientale; Aerospaziale; dei Materiali, Università di Palermo; Viale delle Scienze, Ed. 6 90128 Palermo Italy
| | - Nadka Tzankova Dintcheva
- Dipartimento di Ingegneria Civile; Ambientale; Aerospaziale; dei Materiali, Università di Palermo; Viale delle Scienze, Ed. 6 90128 Palermo Italy
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Liu L, Liu Z, Huang P. Novel POSS based nanohybrids for improving tribological properties of liquid paraffin. RSC Adv 2016. [DOI: 10.1039/c6ra21618h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
POSS based nanohybrids were prepared via “thiol–ene click” reaction. As a novel additive, they are effective for improving the tribological properties at rather a low concentration when compared with pure solid or liquid lubricating additives.
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Affiliation(s)
- Lei Liu
- Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments
- School of Mechanical Engineering
- Southeast University
- Nanjing 211189
- People's Republic of China
| | - Zhengquan Liu
- Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments
- School of Mechanical Engineering
- Southeast University
- Nanjing 211189
- People's Republic of China
| | - Peng Huang
- Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments
- School of Mechanical Engineering
- Southeast University
- Nanjing 211189
- People's Republic of China
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