Highly cross-linked but tough: combination of contradicting properties in cationically polymerized epoxy-polyol adhesives

References

• Halder , S , Ghosh , PK , Goyat , MS and Ray , S . 2013 . Ultrasonic dual mode mixing and its effect on tensile properties of SiO2-epoxy nanocomposites . J. Adhes. Sci. Technol. , 27 : 111 – 124 .
   Web of Science ®Google Scholar
• Hartwig , A , Lühring , A and Trautmann , J . 2009 . Spheroidal nanoparticles in epoxide-based adhesives . Macromol. Mater. Eng. , 294 : 363 – 379 .
   Web of Science ®Google Scholar
• Hartwig , A , Sebald , M and Kleemeier , M . 2005 . Cross-linking of cationically polymerised epoxides by nanoparticles . Polymer , 46 : 2029 – 2039 .
   Web of Science ®Google Scholar
• Wang , Y , Zhou , C , Zhang , Q and Huang , Z . 2013 . Synthesis of fumed silica treated with organosilanes and its effect on epoxy resin . Polym. Plast. Technol. Eng. , 52 : 145 – 148 .
   Web of Science ®Google Scholar
• Zohar , E , Baruch , S , Shneider , M , Dodiuk , H , Kenig , S , Tenne , R and Wagner , HD . 2011 . The effect of WS2 nanotubes on the properties of epoxy-based nanocomposites . J. Adhes. Sci. Technol. , 25 : 1603 – 1617 .
   Web of Science ®Google Scholar
• Shneider , M , Dodiuk , H , Kenig , S and Tenne , R . 2010 . The effect of tungsten sulfide fullerene-like nanoparticles on the toughness of epoxy adhesives . J. Adhes. Sci. Technol. , 24 : 1083 – 1095 .
   Web of Science ®Google Scholar
• Yoshimura , A , Takaki , T , Noji , Y , Yokozeki , T , Ogasawara , T and Ogihara , S . 2012 . Fracture toughness of cfrp adhesive bonded joints at cryogenic temperatures . J. Adhes. Sci. Technol. , 26 : 1017 – 1031 .
   Web of Science ®Google Scholar
• Rudawska A, Czarnota M. Selected aspects of epoxy adhesive compositions curing process. J. Adhes. Sci. Technol. 2013; doi: 10.1080/01694243.2013.766558.
   Google Scholar
• Pascault , JP and Williams , RJJ . 2011 . Epoxy polymers: new materials and innovations , Weinheim : Wiley-VCH .
   Google Scholar
• Fink JK. Reactive polymers fundamentals and applications – a concise guide to industrial polymers. Norwich: William Andrew Publishing/Plastics Design, Library; 2005.
   Google Scholar
• Petrie , EM . 2005 . Epoxy adhesive formulations , New York , NY : McGraw-Hill Professional .
   Google Scholar
• Yagci , Y and Schnabel , W . 1999 . On the mechanism of photoinitiated cationic polymerization in the presence of polyols . Angew. Makromol. Chem. , 270 : 38 – 41 .
   Google Scholar
• Penczek , S , Kubisa , P and Szymanski , R . 1986 . Activated monomer propagation in cationic polymerizations . Makromol. Chem., Macromol. Symp. , 3 : 203 – 220 .
   Google Scholar
• Spyrou , E . 2001 . Radiation initiated cationic polymerization with tailor-made polyesters . Prog. Org. Coat. , 43 : 25 – 31 .
   Google Scholar
• Hartwig , A , Koschek , K , Lühring , A and Schorsch , O . 2003 . Cationic polymerization of a cycloaliphatic diepoxide with latent initiators in the presence of structurally different diols . Polymer , 44 : 2853 – 2858 .
   Google Scholar
• Lützen , H , Bitomsky , P , Rezwan , K and Hartwig , A . 2013 . Partially crystalline polyols lead to morphology changes and improved mechanical properties of cationically polymerized epoxy resins . Eur. Polym. J. , 49 : 167 – 176 .
   Web of Science ®Google Scholar
• Lützen , H , Gesing , ThM , Kim , BK and Hartwig , A . 2012 . Novel cationically polymerized epoxy/poly(ϵ-caprolactone) polymers showing a shape memory effect . Polymer , 53 : 6089 – 6095 .
   Web of Science ®Google Scholar
• Lützen H, Hartwig A. Dynamics in poly(ϵ-caprolactone) containing phase separated epoxy thermosets. Macromol. Mater. Eng. in press. doi:10.1002/mame.201200435.
   Google Scholar
• Hartwig , A and Sebald , M . 2003 . Preparation and properties of elastomers based on a cycloaliphatic diepoxide and poly(tetrahydrofuran) . Eur. Polym. J. , 39 : 1975 – 1981 .
   Google Scholar
• Harani , H , Fellahi , S and Bakar , M . 1999 . Toughening of epoxy resin using hydroxyl-terminated polyesters . J. Appl. Polym. Sci. , 71 : 29 – 38 .
   Web of Science ®Google Scholar
• Däbritz , F , Voit , B , Naguib , M and Sangermano , M . 2011 . Hyperstar poly(ester-methacrylate)s as additives in thermally and photocured epoxy resins . Polymer , 52 : 5723 – 5731 .
   Google Scholar
• Foix , D , Fernández-Francos , X , Ramis , X , Serra , A and Sangermano , M . 2011 . New pegylated hyperbranched polyester as chemical modifier of epoxy resins in UV cationic photocuring . React. Funct. Polym. , 71 : 417 – 424 .
   Google Scholar
• Foix , D , Ramis , X , Sangermano , M and Serra , A . 2012 . Synthesis of a new hyperbranched-linear-hyperbranched triblock copolymer and its use as a chemical modifier for the cationic photo and thermal curing of epoxy resins . J. Polym. Sci., Part A: Polym. Chem. , 50 : 1133 – 1142 .
   Web of Science ®Google Scholar
• Hahn , C , Keul , H and Möller , M . 2010 . Synthesis and characterisation of poly[oligo(ϵ-caprolactone) L -malate-graft-poly( L -lactide)] . Macromol. Chem. Phys. , 211 : 752 – 760 .
   Google Scholar
• Hahn , C , Wesselbaum , S , Keul , H and Möller , M . 2013 . OH-functional polyesters based on malic acid: influence of the OH-groups onto the thermal properties . Eur. Polym. J. , 49 : 217 – 227 .
   Google Scholar
• Morio , K , Murase , H and Tsuchiya , H . 1986 . Thermoinitiated cationic polymerization of epoxy resins by sulfonium salts . J. Appl. Polym. Sci. , 32 : 5727 – 5732 .
   Google Scholar
• German version ISO 527 Plastics – determination of tensile properties. Part 1: General principles. 2003.
   Google Scholar
• German version ISO 527 Plastics – determination of tensile properties. Part 2: Test conditions for moulding and extrusion plastics. 1996.
   Google Scholar
• German version EN 1465 adhesives – determination of tensile lap-shear strength of bonded assemblies. 2009.
   Google Scholar
• German version ISO 868 plastics and ebonite – determination of indentation hardness by means of a durometer (Shore hardness). 2003.
   Google Scholar
• Arasa , V , Ramis , X , Sala , JM , Mantecón , A and Serra , A . 2007 . A study of the degradation of ester-modified epoxy resins obtained by cationic copolymerization of DGEBA with γ-lactones initiated by rare earth triflates . Polym. Degrad. Stab. , 92 : 2214 – 2222 .
   Web of Science ®Google Scholar
• Hartwig , A . 2003 . Influence of different initiators on the adhesion properties of photopolymerized epoxides on gold and silicon . J. Adhes. Sci. Technol. , 17 : 1561 – 1572 .
   Web of Science ®Google Scholar