Structure-property Relationships of Polymers in Membranes : Scientific evidence for presence of Pores on the membrane surface using innovative physical and polymer chemistry / Damle, Aditi/V.C. Malshe, Prof.

Structure-property Relationships of Polymers in Membranes : Scientific evidence for presence of Pores on the membrane surface using innovative physical and polymer chemistry （2011. 240 S. 220 mm）

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Structure-property Relationships of Polymers in Membranes : Scientific evidence for presence of Pores on the membrane surface using innovative physical and polymer chemistry （2011. 240 S. 220 mm）

Damle, Aditi/V.C. Malshe, Prof.

ウェブストア価格 ¥20,898（本体¥18,999）
LAP LAMBERT ACADEMIC PUBLISHING（2011発売）
外貨定価 EUR 79.00
ポイント 189pt

オンデマンド(OD/POD)版です。キャンセルは承れません。

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製本 Paperback:紙装版/ペーパーバック版／ページ数 240 p.
商品コード 9783844310122

Description

(Text)
Asymmetric Cellulose acetate membranes were first developed and used for water desalination. Though the inventors designed membranes to be porous on surface which would separate salt from water by adsorption of pure water on the surface, the prevailing scientific community felt it was diffusion of pure water from the membrane which caused separation. Even after polyamide RO membranes became available which were derived by surface modification of polysulfone UF membranes that were well recognized for their porous nature, the solution-diffusion theories continued. We were compelled to take up this work to give additional evidence for existence of pores on the surface of all membranes those could separate solutes from solutions. We demonstrated that application of vacuum at outlet of membrane should improve the flux only if the membrane was not a continuous surface. Applying vacuum at outlet of the membrane is not same as applying that much additional pressure at the feed side. Polyamides that cannot form continuous structures were synthesized and demonstrated to produce porous desalination RO Membranes, with higher flux under vacuum.
(Author portrait)
Damle, AditiAditi Damle-Bijani, PhD-Polymer Chemistry, research scientist in membranes and coatings.Prof.V.C. Malshe, 37 years of total experience. Has guided 19 PhDs and 12 Masters. Author of two books on paint technology, several publications and patents. A material scientist, working with polymers & catalysts. A consultant to leading industries.