نتایج جستجو برای: direct polycondensation

تعداد نتایج: 425759  

ژورنال: مواد پرانرژی 2016
رضایی, منا, شهیدزاده, منصور,

polyester polyol can be used in high energy propellant as a binder.In this research, polyazido polyester was synthesized from direct polycondensation reaction between adipic acid and 2,2-bis(bromomethyl)-1,3-propanediol. Then, azidation of poly bromoester afford polyazidoester as an energetic polyester. polyazidoester have identified and characterized by FTIR,HNMR,GPC,DSC and elemental analysis...

Journal: :The Journal of the Society of Chemical Industry, Japan 1964

Journal: :Bulletin of the Chemical Society of Japan 1968

Journal: :Dyes and Pigments 2022

Because of their intriguing properties for optoelectronic applications, research on organic semiconducting polymers has steadily progressed over the past decades, yielding increasingly fine-tuned (hetero)aromatic polymer backbones. In this work, push-pull copolymer PDTPQx is synthesized, both via Stille polycondensation and direct arylation polymerization (DArP), permitting comparison two proce...

Journal: :Polymer Chemistry 2021

A series of sugar-derived triols and biobased diacids were combined to prepare fully branched polyesters with different structural features by melt polycondensation.

Journal: :Polymer Chemistry 2022

This paper reports the synthesis of high molecular weight semi-aromatic polyamides containing renewable furanic monomer by a scalable melt polycondensation method using eco-friendly titanium-based catalysts.

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