Synthesis, characterization and reverse osmosis performance of poly(amide-sulfonamide)s

Wing Hong CHAN; Suei Yee Lam-Leung; Ching Fai Ng; Shu Sen Wang

doi:10.1016/0032-3861(93)90205-O

Synthesis, characterization and reverse osmosis performance of poly(amide-sulfonamide)s

Wing Hong CHAN^*, Suei Yee Lam-Leung, Ching Fai Ng, Shu Sen Wang

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

Poly(amide-sulfonamide)s 1-4 were synthesized by low-temperature solution polycondensation of diamino monomers 5 and 6 with isophthaloyl chloride/terephthaloyl chloride in N,N-dimethylacetamide (DMAc). The polymers were adequately characterized for their properties. Membranes were fabricated from PASA 2 under different casting conditions by varying the casting solution composition, evaporation temperature and evaporation time. The reverse osmosis (RO) tests for these membranes were performed with 1000 ppm aqueous sodium chloride feeds at 20 to 40 kg cm^-2) operating pressure. Membranes showed salt rejections of up to 97.9% at a flux of over 11.9 cm per day. The RO performances of the membranes remained unchanged after treatment with dilute acid, alkali and oxidizing agent.

Original language	English
Pages (from-to)	4377-4381
Number of pages	5
Journal	Polymer
Volume	34
Issue number	20
DOIs	https://doi.org/10.1016/0032-3861(93)90205-O
Publication status	Published - Oct 1993

Scopus Subject Areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

User-Defined Keywords

membrane materials
poly(amide-sulfonamide)s
reverse osmosis
synthesis
thermal and chemical stability

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10.1016/0032-3861(93)90205-O

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title = "Synthesis, characterization and reverse osmosis performance of poly(amide-sulfonamide)s",

abstract = "Poly(amide-sulfonamide)s 1-4 were synthesized by low-temperature solution polycondensation of diamino monomers 5 and 6 with isophthaloyl chloride/terephthaloyl chloride in N,N-dimethylacetamide (DMAc). The polymers were adequately characterized for their properties. Membranes were fabricated from PASA 2 under different casting conditions by varying the casting solution composition, evaporation temperature and evaporation time. The reverse osmosis (RO) tests for these membranes were performed with 1000 ppm aqueous sodium chloride feeds at 20 to 40 kg cm-2) operating pressure. Membranes showed salt rejections of up to 97.9% at a flux of over 11.9 cm per day. The RO performances of the membranes remained unchanged after treatment with dilute acid, alkali and oxidizing agent.",

keywords = "membrane materials, poly(amide-sulfonamide)s, reverse osmosis, synthesis, thermal and chemical stability",

author = "CHAN, {Wing Hong} and Lam-Leung, {Suei Yee} and Ng, {Ching Fai} and Wang, {Shu Sen}",

note = "Funding Information: Financial support( RGC/92-93/18f)r om the Research Grant Council of the Universitya nd PolytechniGc rant Committee is gratefullay cknowledgeKda. m-ToLau and Wing-Shing Yu participatedin this project in their capacitieass f inaly earu ndergraduartees earcsht udents.",

year = "1993",

month = oct,

doi = "10.1016/0032-3861(93)90205-O",

language = "English",

volume = "34",

pages = "4377--4381",

journal = "Polymer",

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T1 - Synthesis, characterization and reverse osmosis performance of poly(amide-sulfonamide)s

AU - CHAN, Wing Hong

AU - Lam-Leung, Suei Yee

AU - Ng, Ching Fai

AU - Wang, Shu Sen

N1 - Funding Information: Financial support( RGC/92-93/18f)r om the Research Grant Council of the Universitya nd PolytechniGc rant Committee is gratefullay cknowledgeKda. m-ToLau and Wing-Shing Yu participatedin this project in their capacitieass f inaly earu ndergraduartees earcsht udents.

PY - 1993/10

Y1 - 1993/10

N2 - Poly(amide-sulfonamide)s 1-4 were synthesized by low-temperature solution polycondensation of diamino monomers 5 and 6 with isophthaloyl chloride/terephthaloyl chloride in N,N-dimethylacetamide (DMAc). The polymers were adequately characterized for their properties. Membranes were fabricated from PASA 2 under different casting conditions by varying the casting solution composition, evaporation temperature and evaporation time. The reverse osmosis (RO) tests for these membranes were performed with 1000 ppm aqueous sodium chloride feeds at 20 to 40 kg cm-2) operating pressure. Membranes showed salt rejections of up to 97.9% at a flux of over 11.9 cm per day. The RO performances of the membranes remained unchanged after treatment with dilute acid, alkali and oxidizing agent.

AB - Poly(amide-sulfonamide)s 1-4 were synthesized by low-temperature solution polycondensation of diamino monomers 5 and 6 with isophthaloyl chloride/terephthaloyl chloride in N,N-dimethylacetamide (DMAc). The polymers were adequately characterized for their properties. Membranes were fabricated from PASA 2 under different casting conditions by varying the casting solution composition, evaporation temperature and evaporation time. The reverse osmosis (RO) tests for these membranes were performed with 1000 ppm aqueous sodium chloride feeds at 20 to 40 kg cm-2) operating pressure. Membranes showed salt rejections of up to 97.9% at a flux of over 11.9 cm per day. The RO performances of the membranes remained unchanged after treatment with dilute acid, alkali and oxidizing agent.

KW - membrane materials

KW - poly(amide-sulfonamide)s

KW - reverse osmosis

KW - synthesis

KW - thermal and chemical stability

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JO - Polymer

JF - Polymer

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ER -

Synthesis, characterization and reverse osmosis performance of poly(amide-sulfonamide)s

Abstract

Scopus Subject Areas

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