Preparation of poly(2,6‐dimethyl‐1,4‐phenylene ether) (PPE)/epoxy laminate with functionalized PPE resin

Abstract

SYNOPSISThermal expansion property at 288°C and methylene chloride resistance of poly (2,6-dimethyl-1,4-phenylene ether (PPE) /epoxy laminate were found to be affected by the functionality on PPE resin. Nonlofting PPE/epoxy laminates were prepared with the PPE grafted with fumaric acid or the PPE having (di-n-butylamino) methyl substituent on the polymer backbone. Employing vacuum-vented PPE extrudate or phenol-redistributed PPE was also effective in improving the PPE/epoxy laminate properties. Attempts to preparing a real PPE/epoxy interpenetrating network as the matrix material for the laminate were also made by incorporating both PPE crosslinker and epoxy curing catalysts in the same formulation.

Segmented copolymers of uniform tetra-amide units and poly(phenylene oxide): 3. Influence of tetra-amide content

“…The telechelic PPE-2T with terephthalic ester endgroups (PPE-2T) were prepared by redistribution (depolymerisation) of PPO-803 w as described in [5]. These PPE-2T segments have a bimodal molecular weight distribution because part of the starting PPE (PPO-803 w ) cannot be depolymerised [5,7]. The bimodal PPE-2T contains a depolymerised low molecular weight fraction (M n w2000 g/mol) with two reactive groups and a high molecular weight fraction with only one or no reactive endgroups (M n w10,000 g/mol).…”

Synthesis, structures and thermal properties of new class epoxide-terminated telechelic poly(2,6-dimethyl-1,4-phenylene oxide)s

“…Recently, curable PPO resins prepared by introducing functional groups to polymer side chains were investigated to improve the inferior compatibility and phase separation between PPO and epoxy resins. Such modifications include acidifications [7], aminations [8], allylations [9] and epoxidations [10]. As part of our continuing research in developing high T g and low D k materials for electronic applications, we report herein the synthesis of new telechelic PPO terminating with glycidyl ether groups and explore the structures and properties of these thermosetting materials.…”

Preparation, curing properties, and phase morphology of epoxy-novolac resin/multiepoxy-terminated low-molecular-weight poly(phenylene oxide) blend

“…To produce the epoxy resin/PPO blend with the controlled phase morphology and high physical performances, the chemical functionalization of PPO chains is adopted. The functional groups such as epoxide , fumaric acid , and (di‐ n ‐butylamino) methyl have been attached to PPO chain ends or its backbones. Till now, the effects of terminal modification of PPO and reactive blending on the phase morphology of epoxy resin/PPO blends are far from being well understood.…”