Attempted degradations of spruce formaldehyde- periodate lignin.
Previous workers observed that wood lignin, when condensed with formaldehyde in 72% sulfuric acid, gave a formaldehyde lignin in which about one-fourth of the carbon atoms were derived from formaldehyde. Reactive sites in the lignin, which normally promoted condensation to insoluble Klason lignin in...
Main Author: | |
---|---|
Other Authors: | |
Format: | Others |
Language: | en |
Published: |
McGill University
1964
|
Subjects: | |
Online Access: | http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115402 |
id |
ndltd-LACETR-oai-collectionscanada.gc.ca-QMM.115402 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-LACETR-oai-collectionscanada.gc.ca-QMM.1154022014-02-13T04:10:02ZAttempted degradations of spruce formaldehyde- periodate lignin.Das, Bejoy. S.Chemistry.Previous workers observed that wood lignin, when condensed with formaldehyde in 72% sulfuric acid, gave a formaldehyde lignin in which about one-fourth of the carbon atoms were derived from formaldehyde. Reactive sites in the lignin, which normally promoted condensation to insoluble Klason lignin in the strong acid, appeared to be preferentially substituted by formaldehyde in such a way that the formaldehyde lignin was soluble in water and other liquids. The object of the present work was to degrade the formaldehyde lignin in the hope of identifying some molecular fragments indicative of its structure.McGill UniversityPurves, C. (Supervisor)1964Electronic Thesis or Dissertationapplication/pdfenalephsysno: NNNNNNNNNTheses scanned by McGill Library.All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated.Doctor of Philosophy. (Department of Chemistry.) http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115402 |
collection |
NDLTD |
language |
en |
format |
Others
|
sources |
NDLTD |
topic |
Chemistry. |
spellingShingle |
Chemistry. Das, Bejoy. S. Attempted degradations of spruce formaldehyde- periodate lignin. |
description |
Previous workers observed that wood lignin, when condensed with formaldehyde in 72% sulfuric acid, gave a formaldehyde lignin in which about one-fourth of the carbon atoms were derived from formaldehyde. Reactive sites in the lignin, which normally promoted condensation to insoluble Klason lignin in the strong acid, appeared to be preferentially substituted by formaldehyde in such a way that the formaldehyde lignin was soluble in water and other liquids. The object of the present work was to degrade the formaldehyde lignin in the hope of identifying some molecular fragments indicative of its structure. |
author2 |
Purves, C. (Supervisor) |
author_facet |
Purves, C. (Supervisor) Das, Bejoy. S. |
author |
Das, Bejoy. S. |
author_sort |
Das, Bejoy. S. |
title |
Attempted degradations of spruce formaldehyde- periodate lignin. |
title_short |
Attempted degradations of spruce formaldehyde- periodate lignin. |
title_full |
Attempted degradations of spruce formaldehyde- periodate lignin. |
title_fullStr |
Attempted degradations of spruce formaldehyde- periodate lignin. |
title_full_unstemmed |
Attempted degradations of spruce formaldehyde- periodate lignin. |
title_sort |
attempted degradations of spruce formaldehyde- periodate lignin. |
publisher |
McGill University |
publishDate |
1964 |
url |
http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=115402 |
work_keys_str_mv |
AT dasbejoys attempteddegradationsofspruceformaldehydeperiodatelignin |
_version_ |
1716646667181096960 |