ESC resistance of commercial grade polycarbonates during exposure to butter and related chemicals

Carina Koch Kjellander; Tenna B Nielsen; Afshin Ghanbari-Siahkali; Peter Kingshott; Charles M. Hansen; Kristoffer Almdal

doi:10.1016/j.polymdegradstab.2008.05.011

ESC resistance of commercial grade polycarbonates during exposure to butter and related chemicals

Carina Koch Kjellander
, Tenna B Nielsen
, Afshin Ghanbari-Siahkali
, Peter Kingshott
, Charles M. Hansen
, Kristoffer Almdal

FORCE Technology

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Three commercial grades of polycarbonates (Lexan (R) 144, Lexan (R) 104 and Makrolon Rx1805) were studied with respect to resistance to environmental stress cracking (ESC) when exposed to butter and related chemicals. The polycarbonates (PCs) were extensively characterised to determine whether differences in ESC resistance could be related to their structural or chemical properties. MALDI-TOF mass spectrometry revealed that Makrolon Rx:1805 contains a low molar mass material characterised as poly(propylene glycol)p, which was confirmed by ATR-FTIR and H-1 NMR. Some "non-absorbing" chemicals, such as butter, cause the PCs to be less resistant to ESC under stress. The reason for this is that these chemicals and the PCs have sufficiently similar Hansen solubility parameters to allow surface conformational changes even though absorption is non-existent or extremely small. ATR-FTIR was used to detect changes in molecular structure in the PC surfaces. (C) 2008 Elsevier Ltd. All rights reserved.

Original language	English
Journal	Polymer Degradation and Stability
Volume	93
Issue number	8
Pages (from-to)	1486-1495
ISSN	0141-3910
DOIs	https://doi.org/10.1016/j.polymdegradstab.2008.05.011
Publication status	Published - 2008

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title = "ESC resistance of commercial grade polycarbonates during exposure to butter and related chemicals",

abstract = "Three commercial grades of polycarbonates (Lexan (R) 144, Lexan (R) 104 and Makrolon Rx1805) were studied with respect to resistance to environmental stress cracking (ESC) when exposed to butter and related chemicals. The polycarbonates (PCs) were extensively characterised to determine whether differences in ESC resistance could be related to their structural or chemical properties. MALDI-TOF mass spectrometry revealed that Makrolon Rx:1805 contains a low molar mass material characterised as poly(propylene glycol)p, which was confirmed by ATR-FTIR and H-1 NMR. Some {"}non-absorbing{"} chemicals, such as butter, cause the PCs to be less resistant to ESC under stress. The reason for this is that these chemicals and the PCs have sufficiently similar Hansen solubility parameters to allow surface conformational changes even though absorption is non-existent or extremely small. ATR-FTIR was used to detect changes in molecular structure in the PC surfaces. (C) 2008 Elsevier Ltd. All rights reserved.",

author = "Kjellander, \{Carina Koch\} and Nielsen, \{Tenna B\} and Afshin Ghanbari-Siahkali and Peter Kingshott and Hansen, \{Charles M.\} and Kristoffer Almdal",

year = "2008",

doi = "10.1016/j.polymdegradstab.2008.05.011",

language = "English",

volume = "93",

pages = "1486--1495",

journal = "Polymer Degradation and Stability",

issn = "0141-3910",

publisher = "Elsevier",

number = "8",

}

TY - JOUR

T1 - ESC resistance of commercial grade polycarbonates during exposure to butter and related chemicals

AU - Kjellander, Carina Koch

AU - Nielsen, Tenna B

AU - Ghanbari-Siahkali, Afshin

AU - Kingshott, Peter

AU - Hansen, Charles M.

AU - Almdal, Kristoffer

PY - 2008

Y1 - 2008

N2 - Three commercial grades of polycarbonates (Lexan (R) 144, Lexan (R) 104 and Makrolon Rx1805) were studied with respect to resistance to environmental stress cracking (ESC) when exposed to butter and related chemicals. The polycarbonates (PCs) were extensively characterised to determine whether differences in ESC resistance could be related to their structural or chemical properties. MALDI-TOF mass spectrometry revealed that Makrolon Rx:1805 contains a low molar mass material characterised as poly(propylene glycol)p, which was confirmed by ATR-FTIR and H-1 NMR. Some "non-absorbing" chemicals, such as butter, cause the PCs to be less resistant to ESC under stress. The reason for this is that these chemicals and the PCs have sufficiently similar Hansen solubility parameters to allow surface conformational changes even though absorption is non-existent or extremely small. ATR-FTIR was used to detect changes in molecular structure in the PC surfaces. (C) 2008 Elsevier Ltd. All rights reserved.

AB - Three commercial grades of polycarbonates (Lexan (R) 144, Lexan (R) 104 and Makrolon Rx1805) were studied with respect to resistance to environmental stress cracking (ESC) when exposed to butter and related chemicals. The polycarbonates (PCs) were extensively characterised to determine whether differences in ESC resistance could be related to their structural or chemical properties. MALDI-TOF mass spectrometry revealed that Makrolon Rx:1805 contains a low molar mass material characterised as poly(propylene glycol)p, which was confirmed by ATR-FTIR and H-1 NMR. Some "non-absorbing" chemicals, such as butter, cause the PCs to be less resistant to ESC under stress. The reason for this is that these chemicals and the PCs have sufficiently similar Hansen solubility parameters to allow surface conformational changes even though absorption is non-existent or extremely small. ATR-FTIR was used to detect changes in molecular structure in the PC surfaces. (C) 2008 Elsevier Ltd. All rights reserved.

U2 - 10.1016/j.polymdegradstab.2008.05.011

DO - 10.1016/j.polymdegradstab.2008.05.011

M3 - Journal article

SN - 0141-3910

VL - 93

SP - 1486

EP - 1495

JO - Polymer Degradation and Stability

JF - Polymer Degradation and Stability

IS - 8

ER -

ESC resistance of commercial grade polycarbonates during exposure to butter and related chemicals

Abstract

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