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公开(公告)号：US5219981A
公开(公告)日：1993-06-15
申请号：US663332
申请日：1991-03-01
申请人： Thomas Gregory , Carl W. Hurtig , Harvey D. Ledbetter , Kenneth J. Quackenbush , Steven Rosenberg
发明人： Thomas Gregory , Carl W. Hurtig , Harvey D. Ledbetter , Kenneth J. Quackenbush , Steven Rosenberg
摘要： Polybenzazole polymers can be synthesized rapidly in large quantities at high molecular weight and high concentration by a two-step process of forming oligomers in a batch reactor and advancing the molecular weight of the polymer in an extruder.
摘要翻译： 通过在间歇式反应器中形成低聚物的两步法和在挤出机中提高聚合物的分子量，可以高分子量和高浓度快速合成聚吲唑聚合物。
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公开(公告)号：US5194568A
公开(公告)日：1993-03-16
申请号：US600551
申请日：1990-10-19
申请人： Thomas Gregory , Carl W. Hurtig , Harvey D. Ledbetter , Kenneth J. Quackenbush , Steven Rosenberg , Ying H. So
发明人： Thomas Gregory , Carl W. Hurtig , Harvey D. Ledbetter , Kenneth J. Quackenbush , Steven Rosenberg , Ying H. So
摘要： It is advantageous to prepare oligomers of polybenzazole polymers by reaction of AA-PBZ monomer with an excess of BB-PBZ monomer. The resulting oligomer dopes may be stored at a temperature at which they remain pumpable until such time as the dope can be advanced to higher molecular weight by adding additional AA-PBZ monomer. The molecular weight of the polymer may be adjusted by controlling the amount of chain extender and/or chain terminator added to oligomer mixtures as they are advanced to final molecular weight.
摘要翻译： 通过AA-PBZ单体与过量的BB-PBZ单体的反应制备聚吲哚聚合物的低聚物是有利的。 所得的低聚物涂料可以在它们保持泵送的温度下储存，直到通过添加另外的AA-PBZ单体将涂料推进到较高分子量的时间。 可以通过控制加成到低聚物混合物中的扩链剂和/或链终止剂的量来调节聚合物的分子量，因为它们进入最终分子量。
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公开(公告)号：US5089591A
公开(公告)日：1992-02-18
申请号：US600549
申请日：1990-10-19
申请人： Thomas Gregory , Carl W. Hurtig , Harvey D. Ledbetter , Kenneth J. Quackenbush , Steven Rosenberg
发明人： Thomas Gregory , Carl W. Hurtig , Harvey D. Ledbetter , Kenneth J. Quackenbush , Steven Rosenberg
摘要： Polybenzazole polymers can be advanced rapidly to high molecular weight at relatively high temperatures and high shear in a dehydrating solvent acid.
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公开(公告)号：US5233014A
公开(公告)日：1993-08-03
申请号：US806110
申请日：1991-12-09
申请人： Thomas Gregory , Carl W. Hurtig , Harvey D. Ledbetter , Kenneth J. Quackenbush , Steven Rosenberg
发明人： Thomas Gregory , Carl W. Hurtig , Harvey D. Ledbetter , Kenneth J. Quackenbush , Steven Rosenberg
摘要： The invention is a condensation polymerization reaction in which functionally terminated polybenzazole ligomers are reacted in a solvent acid at a temperature of at least 150.degree. C. and a shear of at least about 10 sec..sup.-1 under conditions so that the desired molecular weight is reached in no more than about 4 hours. The oligomers may be, for example, derived from the reaction of 4,6-diaminoresorcinol bis(hydrochloride) and terephthalic acid. The concentration of oligomers is high enough so that the reaction mixture contains liquid crystalline domains.
摘要翻译： 本发明是一种缩聚反应，其中在功能上终止的聚吲哚ligomers是在至少150℃的温度和至少约条件下10个仲1，使得所期望的分子量是剪切反应在溶剂中的酸 达到不超过约4小时。 低聚物可以是，例如，从4,6-二氨基双（盐酸盐）和对苯二甲酸的反应而得。 低聚物的浓度足够高，使得反应混合物含有液晶畴。
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