Improved dispersion of clay platelets in poly(butylene terephthalate) nanocomposite by ring-opening polymerization of cyclic oligomers: Effect of the processing conditions and comparison with nanocomposites obtained by melt intercalation

2009 ◽  
Vol 114 (5) ◽  
pp. 3211-3217 ◽  
Author(s):  
C. Berti ◽  
E. Binassi ◽  
M. Colonna ◽  
M. Fiorini ◽  
T. Zuccheri ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Processing Conditions ◽  
Butylene Terephthalate ◽  
Melt Intercalation ◽  
Cyclic Oligomers ◽  
Clay Platelets

Preparation and Characterization of Multiwalled Carbon Nanotubes-Reinforced pCBT by Ring-Opening Polymerization of Cyclic Butylene Terephthalate

2016 ◽  
Vol 848 ◽  
pp. 125-131
Author(s):  
Yin He Su ◽  
Jun Rong Yu
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Scanning Calorimetry ◽  
Multiwalled Carbon ◽  
Butylene Terephthalate ◽  
Cyclic Butylene Terephthalate ◽  
The Matrix ◽  
Higher Temperature

Multiwalled carbon nanotubes (MWCNT)-reinforced polymerized cyclic butylene terephthalate (pCBT) nanocomposites were prepared by in situ ring opening polymerization of cyclic butylene terephthalate oligomers (CBT). The results of differential scanning calorimetry (DSC) indicated that the melting peak located at the low temperature (Tm1) increased and that at higher temperature (Tm2) decreased with the increasing of content of the MWCNT. During the cooling the MWCNT served as nucleation points from where crystallization can start. The more the MWCNT in the system the earlier the crystallization starts. The Morphological investigations performed by scanning electron microscopy (SEM) shown that the MWCNT were embedded in the matrix and held tightly by the matrix. The modulus and strength increased with MWCNT concentration in the nanocomposites, however, the elongation at break, absorbed energy at break and impact strength were decreased with the increasing of MWCNT content.

scholarly journals CYCLIC BUTYLENE TEREPHTHALATE AND PROMISING FIELD OF APPLICATION

2017 ◽  
Vol 60 (7) ◽  
pp. 4
Author(s):  
Nikolay A. Chukov ◽  
Muslim A. Mikitaev ◽  
Mukhamed Kh. Ligidov ◽  
Musa T. Bashorov ◽  
Vladimir N. Shogenov ◽  
...  
Keyword(s):  
Carbon Fibers ◽  
Atmospheric Pressure ◽  
Ring Opening ◽  
Glass Fibers ◽  
Ring Opening Polymerization ◽  
Chemical Modifications ◽  
Butylene Terephthalate ◽  
Cyclic Butylene Terephthalate ◽  
Physical And Chemical ◽  
Structure Properties

Due to its unique characteristics, cyclic butylene terephthalate is used in novel developments of chemical industry. This article represents the review of the latest achievements in the field of processing, structure, properties of cyclic butylene terephthalate, its physical and chemical modifications as well as composites and nanocomposites based on it. In recent years, cyclic butylene terephthalate oligomers have drawn the attention of scientists. The oligomers can be acquired through the chemical reaction of cyclo-depolymerization and used as materials for ring-opening polymerization reactions. This method of polymerization has a variety of advantages compared to a standard method of synthesis polyesters. One of the main advantages of this method includes the capability to make polymerization reactions at standard atmospheric pressure, low required temperature, no side effects and obtaining a completely finished product as an outcome. The unique qualities of cyclic butylene terephthalate make it a promising material to be used as matrix for a variety of nano- and microcomposites and super concentrate. This study analyzes some of the examples of applying CBT as a super concentrate for creating materials like carbon nanotubes, laminated silicates, carbon fibers and glass fibers. In the majority of studies, the addition of nano-sized fillers into CBT leads to amplification of mechanical properties. In the cases of usage as fillers for carbon fibers and glass fibers, the possibility of replacing thermosetting resins with CBT is currently being researched. It could possibly lead to increase in manufacturability of carbon fibers and fiberglass and increase its possible area of application. Cyclic butylene terephthalate can also be used as a viscosity modifier for synthetic rubbers. In this case it can be both plasticizer and enhancing agent.For citation:Chukov N.A., Mikitaev M.A., Ligidov M.Kh., Bashorov M.T., Shogenov V.N., Pakhomov S.I. Cyclic butylene terephthalate and promising field of application. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2017. V. 60. N 7. P. 4-13.

Synthesis and Ring-Opening Polymerization of Poly(alkylene 2,6-naphthalenedicarboxylate) Cyclic Oligomers

1996 ◽  
Vol 29 (26) ◽  
pp. 8304-8307 ◽  
Author(s):  
Patricia Hubbard ◽  
William J. Brittain ◽  
William J. Simonsick ◽  
Charles W. Ross
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Cyclic Oligomers

Preparation of crystalline and solvent resistant polycarbonates via ring-opening polymerization of cyclic oligomers

1994 ◽  
Vol 77 (1) ◽  
pp. 117-124 ◽  
Author(s):  
Daniel J. Brunelle ◽  
Herman O. Krabbenhoft ◽  
David K. Bonauto
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Cyclic Oligomers

A novel tin-based imidazolium-modified montmorillonite catalyst for the preparation of poly(butylene terephthalate)-based nanocomposites using in situ entropically-driven ring-opening polymerization

RSC Advances ◽  
2015 ◽  
Vol 5 (8) ◽  
pp. 6222-6231 ◽  
Author(s):  
Lucia Conzatti ◽  
Roberto Utzeri ◽  
Philip Hodge ◽  
Paola Stagnaro
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Butylene Terephthalate ◽  
Modified Montmorillonite ◽  
Montmorillonite Catalyst ◽  
Entropically Driven

A novel alkylimidazolium salt incorporating a 2,2-di-n-butyl[1,3,2]dioxastannolane moiety was synthesized and characterized.

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