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Title: Soluble, High Molecular Weight Polysilsesquioxanes with Carboxylate Functionalities

Abstract

Trialkoxysilyl-containing monomers of the type (RO){sub 3}Si(CH{sub 2}){sub 3}C(O)OtBu (R = Me, Et) were prepared by hydrosilation of the corresponding vinylic tert-butyl esters CH{sub 3}CHCH{sub 2}C(O)OtBu. Acid- or base-catalyzed polymerization of the monomers leads to very high molecular weight polymers with relatively narrow polydispersities. The polymerization results in complete condensation of the alkoxy groups while the tert-butyl ester functionality remains fully intact. Partial or full deprotection of the tert-butyl group can easily be achieved to yield the corresponding carboxylic acid polymers. The ester and carboxylic acid functionalities of these new materials allow for their potential use in a variety of applications such as scavenging of heavy metals.

Authors:
; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (US); Sandia National Labs., Livermore, CA (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
759987
Report Number(s):
SAND2000-1901J
TRN: AH200031%%156
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Journal Article
Resource Relation:
Journal Name: Macromolecules; Other Information: Submitted to Macromolecules; PBD: 14 Jul 2000
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ORGANIC SILICON COMPOUNDS; CHEMICAL PREPARATION; POLYMERIZATION; CARBOXYLIC ACID ESTERS; MOLECULAR WEIGHT; SORPTIVE PROPERTIES; METALS

Citation Formats

RAHIMIAN,KAMYAR, LOY,DOUGLAS A., and WHEELER,DAVID R. Soluble, High Molecular Weight Polysilsesquioxanes with Carboxylate Functionalities. United States: N. p., 2000. Web.
RAHIMIAN,KAMYAR, LOY,DOUGLAS A., & WHEELER,DAVID R. Soluble, High Molecular Weight Polysilsesquioxanes with Carboxylate Functionalities. United States.
RAHIMIAN,KAMYAR, LOY,DOUGLAS A., and WHEELER,DAVID R. Fri . "Soluble, High Molecular Weight Polysilsesquioxanes with Carboxylate Functionalities". United States. https://www.osti.gov/servlets/purl/759987.
@article{osti_759987,
title = {Soluble, High Molecular Weight Polysilsesquioxanes with Carboxylate Functionalities},
author = {RAHIMIAN,KAMYAR and LOY,DOUGLAS A. and WHEELER,DAVID R.},
abstractNote = {Trialkoxysilyl-containing monomers of the type (RO){sub 3}Si(CH{sub 2}){sub 3}C(O)OtBu (R = Me, Et) were prepared by hydrosilation of the corresponding vinylic tert-butyl esters CH{sub 3}CHCH{sub 2}C(O)OtBu. Acid- or base-catalyzed polymerization of the monomers leads to very high molecular weight polymers with relatively narrow polydispersities. The polymerization results in complete condensation of the alkoxy groups while the tert-butyl ester functionality remains fully intact. Partial or full deprotection of the tert-butyl group can easily be achieved to yield the corresponding carboxylic acid polymers. The ester and carboxylic acid functionalities of these new materials allow for their potential use in a variety of applications such as scavenging of heavy metals.},
doi = {},
journal = {Macromolecules},
number = ,
volume = ,
place = {United States},
year = {Fri Jul 14 00:00:00 EDT 2000},
month = {Fri Jul 14 00:00:00 EDT 2000}
}