English  |  正體中文  |  简体中文  |  Items with full text/Total items : 330/331
Visitors : 2927534      Online Users : 47
RC Version 5.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://mitustr.lib.mitust.edu.tw:8080/ir/handle/987654321/1105

Title: Studies of silicon-containing maleimide polymers. Part II: Synthesis and properties of poly(styrene-co-bromine-containing maleimide)
Authors: 疏偉傑
Chiang, Chia-Yu
Tsai, Ruey-Shi
Shu, Wei-Jye
Keywords: poly(styrene-co-maleimide)
copolymerization
reactivity ratio
flame retardancy
Date: 2007-06
Issue Date: 2014-12-29 14:09:55 (UTC+8)
Abstract: Soluble copolymers of a series of bromine-containing (N-maleimido phenoxy) silane (BMS) monomers with styrene (St) were synthesized by radical polymerization in toluene using 2,2’-azobisisobutyronitrile (AIBN) as initiator. The comonomer reactivity ratios were calculated by the conventional Fineman-Ross and Kelen-Tüdos methods and a nonlinear least-squares Tidwell-Mortimer method. The glass transition temperatures (Tg’s) and thermal degradation of copolymers were determined by differential scanning calorimetry (DSC) and thermo-gravimetric analysis (TGA) respectively. The introduction of silane side-chain into maleimide (MI) monomers changed the comonomer reactivity ratio with styrene from alternating to azeotropic copolymerization. The curves of Tg’s versus the different compositions of the above synthesized St-BMS copolymers matched a modified Tg’s equation as a increase in the effect of weight ratio on alternating-segment, and an S-shaped curve of deviation in comparison with the Fox’s equation. The MI-segments within these copolymers exhibited a good compatibility and, the flame retardancy of polystyrene could be enhanced via the introduction of Si/Br-containing maleimide.
Appears in Collections:[生活應用科技系] 專書、期刊論文或研討會議論文

Files in This Item:

File Description SizeFormat
ePolymer1.pdf326KbAdobe PDF841View/Open


All items in MITUSTIR are protected by copyright, with all rights reserved.

 


DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback