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Titolo:
Multiphase materials with lignin. XV. Blends of cellulose acetate butyratewith lignin esters
Autore:
Ghosh, I; Jain, RK; Glasser, WG;
Indirizzi:
Virginia Polytech Inst & State Univ, Biobased Mat Recycling Ctr, Blacksburg, VA 24061 USA Virginia Polytech Inst & State Univ Blacksburg VA USA 24061 VA 24061 USA Virginia Polytech Inst & State Univ, Dept Wood Sci & Forest Prod, Blacksburg, VA 24061 USA Virginia Polytech Inst & State Univ Blacksburg VA USA 24061 VA 24061 USA
Titolo Testata:
JOURNAL OF APPLIED POLYMER SCIENCE
fascicolo: 2, volume: 74, anno: 1999,
pagine: 448 - 457
SICI:
0021-8995(19991010)74:2<448:MMWLXB>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
HYDROXYPROPYL CELLULOSE; MORPHOLOGY; DERIVATIVES; BIODEGRADABILITY; SUBSTITUTION; MISCIBILITY; COMPOSITES; FILMS;
Keywords:
multiphase materials; lignin; cellulose acetate butyrate; esters; acetate; butyrate; hexanoate; laurate; dynamic mechanical thermal analysis; transmission electron micrographs; compatibility;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Glasser, WG Virginia Polytech Inst & State Univ, Biobased Mat Recycling Ctr, Blacksburg, VA 24061 USA Virginia Polytech Inst & State Univ BlacksburgVA USA 24061 A
Citazione:
I. Ghosh et al., "Multiphase materials with lignin. XV. Blends of cellulose acetate butyratewith lignin esters", J APPL POLY, 74(2), 1999, pp. 448-457

Abstract

Commercially available cellulose acetate butyrate (CAB, unplasticized) wasblended in melt and solution with lignin esters having different ester substituents-acetate (LA), butyrate (LB), hexanoate (LH), and laurate (LL). All lignin esters formed phase-separated blends with CAB with domain size depending on processing conditions and the interaction between phases depending on blend components. CAB/LA and CAB/LB revealed the strongest interactions with domain sizes on the 15-30 nm scale as probed by dynamic mechanical thermal analysis and differential scanning calorimetry. The glass transitions (T-g,) followed the Fox equation. Broader transitions corresponding to the T-g,s of the two parent components were observed for CAB blends with LH and LL. Transmission electron micrographs revealed differences in the phase dimensions of the blends in accordance with chemical and processing (i.e., melt vs solvent) differences. Modest gains in modulus were observed for lowcontents (<20 wt %) of LA and LB. (C) 1999 John Wiley & Sons, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 13/07/20 alle ore 10:50:47