Crystallization phenomena in bacterial poly[(R)-3-hydroxybutyrate]: 3. Toughening via texture changes

G.J.M. Koning, de; A.H.C. Scheeren; P.J. Lemstra; M. Peeters; H. Reynaers

doi:10.1016/0032-3861(94)90809-5

Crystallization phenomena in bacterial poly[(R)-3-hydroxybutyrate]: 3. Toughening via texture changes

G.J.M. Koning, de, A.H.C. Scheeren, P.J. Lemstra, M. Peeters, H. Reynaers

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Abstract

Poly[(R)-3-hydroxybutyrate] (I) is a bacterial storage polyester that is genuinely biodegradable, but its brittleness hampers its wide applicability as a biodegradable plastic. Most attempts to improve the mech. properties of I have focused on incorporating comonomers, but at the expense of prodn. costs. Strikingly, it appeared possible to toughen I using a simple annealing treatment. The present study attributes this remarkable phenomenon to a change in the lamellar morphol., which reduces the amorphous-cryst. interface area and thus the constraint imposed on the amorphous chains by the crystals. This elevates the relaxation strength of the amorphous regions, giving rise to the favorable fracture behavior

Original language	English
Pages (from-to)	4598-4605
Journal	Polymer
Volume	35
Issue number	21
DOIs	https://doi.org/10.1016/0032-3861(94)90809-5
Publication status	Published - 1994

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title = "Crystallization phenomena in bacterial poly[(R)-3-hydroxybutyrate]: 3. Toughening via texture changes",

abstract = "Poly[(R)-3-hydroxybutyrate] (I) is a bacterial storage polyester that is genuinely biodegradable, but its brittleness hampers its wide applicability as a biodegradable plastic. Most attempts to improve the mech. properties of I have focused on incorporating comonomers, but at the expense of prodn. costs. Strikingly, it appeared possible to toughen I using a simple annealing treatment. The present study attributes this remarkable phenomenon to a change in the lamellar morphol., which reduces the amorphous-cryst. interface area and thus the constraint imposed on the amorphous chains by the crystals. This elevates the relaxation strength of the amorphous regions, giving rise to the favorable fracture behavior",

author = "{Koning, de}, G.J.M. and A.H.C. Scheeren and P.J. Lemstra and M. Peeters and H. Reynaers",

year = "1994",

doi = "10.1016/0032-3861(94)90809-5",

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T1 - Crystallization phenomena in bacterial poly[(R)-3-hydroxybutyrate]: 3. Toughening via texture changes

AU - Koning, de, G.J.M.

AU - Scheeren, A.H.C.

AU - Lemstra, P.J.

AU - Peeters, M.

AU - Reynaers, H.

PY - 1994

Y1 - 1994

N2 - Poly[(R)-3-hydroxybutyrate] (I) is a bacterial storage polyester that is genuinely biodegradable, but its brittleness hampers its wide applicability as a biodegradable plastic. Most attempts to improve the mech. properties of I have focused on incorporating comonomers, but at the expense of prodn. costs. Strikingly, it appeared possible to toughen I using a simple annealing treatment. The present study attributes this remarkable phenomenon to a change in the lamellar morphol., which reduces the amorphous-cryst. interface area and thus the constraint imposed on the amorphous chains by the crystals. This elevates the relaxation strength of the amorphous regions, giving rise to the favorable fracture behavior

AB - Poly[(R)-3-hydroxybutyrate] (I) is a bacterial storage polyester that is genuinely biodegradable, but its brittleness hampers its wide applicability as a biodegradable plastic. Most attempts to improve the mech. properties of I have focused on incorporating comonomers, but at the expense of prodn. costs. Strikingly, it appeared possible to toughen I using a simple annealing treatment. The present study attributes this remarkable phenomenon to a change in the lamellar morphol., which reduces the amorphous-cryst. interface area and thus the constraint imposed on the amorphous chains by the crystals. This elevates the relaxation strength of the amorphous regions, giving rise to the favorable fracture behavior

U2 - 10.1016/0032-3861(94)90809-5

DO - 10.1016/0032-3861(94)90809-5

M3 - Article

SN - 0032-3861

VL - 35

SP - 4598

EP - 4605

JO - Polymer

JF - Polymer

IS - 21

ER -

Crystallization phenomena in bacterial poly[(R)-3-hydroxybutyrate]: 3. Toughening via texture changes

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