dc.contributor.author |
Benvenuta-Tapia, JJ |
|
dc.contributor.author |
Herrera-Najera, R |
|
dc.contributor.author |
Ríos-Guerrero, L |
|
dc.contributor.author |
Tenorio-López, JA |
|
dc.date.accessioned |
2011-01-22T10:25:56Z |
|
dc.date.available |
2011-01-22T10:25:56Z |
|
dc.date.issued |
2009 |
|
dc.identifier.issn |
0032-3888 |
|
dc.identifier.uri |
http://hdl.handle.net/11154/946 |
|
dc.description.abstract |
This article deals with the characterization of high trans-1,4-poly(butadiene) (TPBD) prepared by means of an anionic polymerization using an initiator composed of alkyl aluminum, n-butyl lithium, and barium alkoxide. By controlling both initiator composition and polymerization temperature, a set of TPBD was prepared with well-known number of 1,4-trans units, molecular weight distribution, and average molecular weight. Analyses by differential scanning calorimetry and diffraction of wide-angle X-rays showed a direct relationship between the microstructure of the polymer and its thermal properties. By increasing the number of 1,4-trans units (70-90%), the crystallinity of the polymer was increased (10-30%) |
en_US |
dc.description.abstract |
polymers with less than 65% of 1,4-trans units were amorphous, whereas TPBD with a number of 1,4-trans units greater than 80% were polymorphous and presented two endothermic transitions. Summing up, the results presented in this article indicate that cyclohexane solutions of alkyl aluminum, n-butyl lithium, and barium alkoxide allow produce poly-butadienes with enough amount of 1,4-trans units to display a regular microstructure that makes them susceptible to experience-induced crystallization, likewise at a reaction rate similar to that observed for the commercial production of poly(butadiene) with n-butyl lithium. POLYM. ENG. SCI., 49:1-10, 2009. (C) 2008 Society of Plastics Engineers |
en_US |
dc.language.iso |
en |
en_US |
dc.title |
Microstructure-Thermal Property Relationship of High trans-1,4-Poly(butadiene) Produced by Anionic Polymerization of 1,3-Butadiene Using an Initiator Composed of Alkyl Aluminum, n-Butyl Lithium, and Barium Alkoxide |
en_US |
dc.type |
Article |
en_US |
dc.identifier.idprometeo |
682 |
|
dc.identifier.doi |
10.1002/pen.21259 |
|
dc.source.novolpages |
49(1):1-10 |
|
dc.subject.wos |
Engineering, Chemical |
|
dc.subject.wos |
Polymer Science |
|
dc.description.index |
WoS: SCI, SSCI o AHCI |
|
dc.relation.journal |
Polymer Engineering and Science |
|