Phase behaviour of poly(benzophenoneimide)s having n-alkyloxymethyl side chains
SCIE
SCOPUS
- Title
- Phase behaviour of poly(benzophenoneimide)s having n-alkyloxymethyl side chains
- Authors
- Kim, H; Choi, YJ; Jung, JC; Zin, WC
- Date Issued
- 1997-06
- Publisher
- SPRINGER VERLAG
- Abstract
- A series of poly(benzophenoneimide)s(C-m-BP-PIs) having n-alkyloxymethyl side chains(-CH2O-n-CmH2m+1, m=4, 6, 8) have been examined by X-ray diffraction, differential scanning calorimetry(DSC) and polarizing optical microscopy. The samples showed basically two phase transitions and both transtion temperatures decreased with increasing side chain length. The first transitions were ascribed to glass transitions and the second ones were assigned to liquid crystal-to-isotropic transitions. Eicosane(n-C20H42) which is chemically very similar to the side chain was miscible with the side chains of C-8-BP-PI, which induced depression of the glass transition temperature.
- Keywords
- RIGID-ROD POLYESTERS; THERMOTROPIC BEHAVIOR; 1,4-DIALKYL ESTERS; PYROMELLITIC ACID; POLYIMIDES; POLYMERS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/29225
- DOI
- 10.1007/s002890050106
- ISSN
- 0170-0839
- Article Type
- Article
- Citation
- POLYMER BULLETIN, vol. 38, no. 6, page. 689 - 694, 1997-06
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- There are no files associated with this item.
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