SYNTHESIS OF POLYAMIDE 6 BY ANIONIC POLYMERIZATION OF Ε-CAPROLACTAM IN AN INTERNAL MIXER

سال انتشار: 1393
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,048

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شناسه ملی سند علمی:

TCPCO01_268

تاریخ نمایه سازی: 27 فروردین 1393

چکیده مقاله:

In the present work an attempt was made to synthesis polyamide 6 through anionic polymerization of ε-caprolactam by using a mixture of Diphenylmethan 4, 4'-di and tri-isocyanate andsodium caprolactamate as a chain initiator and catalyst, respectively. Polymerization was carried out ina laboratory internal mixer (Brabender). The reaction temperature and chain initiator concentration were among processing variables studied. It was demonstrate that it is possible to produce polyamide 6with high degree of conversion and characteristics similar to those of commercial polyamide 6 by usingthe anionic ring-opening polymerization of ε-caprolactam in an internal mixer. The results show that thermomechanical degradation can also take place as a competitive reaction and therefore higherdegree of conversion can be achieved at temperature just above the melting point of polyamide 6(220°C). The results obtained in the present work can provide valuable information for optimization of the reactive extrusion process condition for producing polyamide 6.

نویسندگان

m.m Salehi

Polymer and Science Technology Division, Research Institute Petroleum Industry, Tehran, ۱۴۸۵۷۳۳۱۱۱, Iran

r Soleyman

Polymer and Science Technology Division, Research Institute Petroleum Industry, Tehran, ۱۴۸۵۷۳۳۱۱۱, Iran

a.a Davoodi

Polymer and Science Technology Division, Research Institute Petroleum Industry, Tehran, ۱۴۸۵۷۳۳۱۱۱, Iran

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  • Mohammad Mahdi Salehi obtained his B5 (2002) in Polymer Engineering ...
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  • Rouhollah Soleyman obtained his B5 (2006) in Pure Chemistry from ...
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