Synthesis and evaluation of catalytic curing behavior of novel nitrile-functionalized benzoxazine for phthalonitrile resins

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Publicado en:Polymer Bulletin vol. 75, no. 8 (Aug 2018), p. 3781
Autor principal: Singh, Ajit Shankar
Otros Autores: Shukla, Shailendra Kumar, Pandey, Arvind Kumar, Tripathi, D. N., Prasad, N. Eswara
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Springer Nature B.V.
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Acceso en línea:Citation/Abstract
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024 7 |a 10.1007/s00289-017-2235-4  |2 doi 
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100 1 |a Singh, Ajit Shankar  |u Defence Materials and Stores Research Development Establishment, Kanpur, India 
245 1 |a Synthesis and evaluation of catalytic curing behavior of novel nitrile-functionalized benzoxazine for phthalonitrile resins 
260 |b Springer Nature B.V.  |c Aug 2018 
513 |a Journal Article 
520 3 |a In the present embodiment, bisphthalonitrile resin has been cured using synthesized novel bisphenyl nitrile-containing benzoxazine (NBZ) vis-a-vis traditional curing agents such as 4-(3′aminophenoxy)diphenyl sulphone (m-DDS) and amino-functionalized phthalonitrile (APN) to study the curing efficacy coupled with processing window and mechanism of curing. It has been established by FT-IR and DSC that NBZ molecules cure the bisphthalonitrile resin matrix by formation of free phenolic groups which act as nucleophile triggering the curing reaction through nitrile–nitrile addition polymerization reaction. Additionally, it has been seen that NBZ-catalyzed phthalonitrile resin curing system showed better processing window in comparison to m-DDS- and APN-catalyzed system. Considering the end-user applications, the NBZ- and m-DDS-cured resins have also been studied for their TG, DMA, water uptake, thermo-oxidative and dielectric properties. 
653 |a Polymers 
653 |a Curing agents 
653 |a Dielectric properties 
653 |a Resins 
653 |a Chemical synthesis 
653 |a Addition polymerization 
653 |a Curing 
653 |a Temperature 
653 |a Nucleophiles 
653 |a Polymerization 
653 |a Benzoxazines 
700 1 |a Shukla, Shailendra Kumar  |u Defence Materials and Stores Research Development Establishment, Kanpur, India 
700 1 |a Pandey, Arvind Kumar  |u Defence Materials and Stores Research Development Establishment, Kanpur, India 
700 1 |a Tripathi, D. N.  |u Defence Materials and Stores Research Development Establishment, Kanpur, India 
700 1 |a Prasad, N. Eswara  |u Defence Materials and Stores Research Development Establishment, Kanpur, India 
773 0 |t Polymer Bulletin  |g vol. 75, no. 8 (Aug 2018), p. 3781 
786 0 |d ProQuest  |t Materials Science Database 
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