Spectral analysis and physical properties of benzylated starch

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F12%3A43893487" target="_blank" >RIV/60461373:22310/12:43893487 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22330/12:43893487 RIV/60461373:22810/12:43893487

Výsledek na webu

<a href="http://dx.doi.org/10.1002/star.201100174" target="_blank" >http://dx.doi.org/10.1002/star.201100174</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/star.201100174" target="_blank" >10.1002/star.201100174</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Spectral analysis and physical properties of benzylated starch

Popis výsledku v původním jazyce

A- and B- wheat starch (in native or acetylated form) and potato starch (slightly acetylated) were subjected to benzylation with benzylchloride in various reaction conditions and at various reaction times (40 - 100°C, 1- 90 hours). Modified and originalstarches were characterized by elemental analysis and spectroscopic methods (FT-IR and 1H NMR). The semicrystalline or amorphous character was indicated by X-ray powder (XRD) patterns. Rheological properties of benzyl starch of DS ~ 1 were measured by small amplitude oscillation shear rheology (SAOS) using the rheometer Haake Rheostress RS 80. The results indicated predominantly elastic behavior because the storage modulus was higher than the loss modulus over the whole frequency range; it correspondedto a true gel. The storage and loss moduli increased with increasing frequency while the tangent of phase did not change and was approximately delta = 40°.

Název v anglickém jazyce

Spectral analysis and physical properties of benzylated starch

Popis výsledku anglicky

A- and B- wheat starch (in native or acetylated form) and potato starch (slightly acetylated) were subjected to benzylation with benzylchloride in various reaction conditions and at various reaction times (40 - 100°C, 1- 90 hours). Modified and originalstarches were characterized by elemental analysis and spectroscopic methods (FT-IR and 1H NMR). The semicrystalline or amorphous character was indicated by X-ray powder (XRD) patterns. Rheological properties of benzyl starch of DS ~ 1 were measured by small amplitude oscillation shear rheology (SAOS) using the rheometer Haake Rheostress RS 80. The results indicated predominantly elastic behavior because the storage modulus was higher than the loss modulus over the whole frequency range; it correspondedto a true gel. The storage and loss moduli increased with increasing frequency while the tangent of phase did not change and was approximately delta = 40°.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GM - Potravinářství

OECD FORD obor

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Projekt

<a href="/cs/project/GA525%2F09%2F0607" target="_blank" >GA525/09/0607: Biodegradabilní kompozitní materiály na bázi B-škrobu s upotřebením v zemědělství</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Starch/Stärke

ISSN

0038-9056

e-ISSN

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Svazek periodika

64

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

481-488

Kód UT WoS článku

000304819800009

EID výsledku v databázi Scopus

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