The above results suggest that hair melanin iss complex random polymer, formed by a very complicated process of oxidation and copolymerization of both sulfur-containing and non-sulfur amino acids.
鉴于上述结果，作者认为头发黑素可能是由不含硫的氨基酸和含硫氨基酸通过复杂的氧化作用和共聚作用生成的无规则聚合物。
After the die, it takes some time for polymer molecules to get reoriented to a random manner again, and to recrystallize.
经过模具之后，聚合物分子需要一定的时间进行重新定型回复到随机方向，并再次结晶。
The present invention belongs to the field of polymer material technology and is especially one kind of modified random styrene-maleic anhydride copolymer with improved toughness and strength.
本发明属高分子材料技术领域，具体为一种增强增韧改性的苯乙烯-马来酸酐无规共聚物。
The present invention belongs to the field of polymer material technology and is especially one kind of modified random styrene-maleic anhydride copolymer with improved toughness and strength.
本发明属高分子材料技术领域，具体为一种增强增韧改性的苯乙烯-马来酸酐无规共聚物。
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