polymer

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数据源: ai_enrichment
聚合物是由许多相同或相似的小分子通过化学键连接而成的大分子物质,常见于塑料、橡胶等材料中。

用法要点

句型搭配

polymer 通常作为名词使用,常见于描述材料性质或化学结构的句子中,如 "be made of polymer" 或 "polymer synthesis"。

• This plastic is made of polymer.
• They study polymer chemistry.
• The polymer chain is long.

介词用法

polymer 常与介词 "of" 连用表示组成,如 "polymer of ethylene";与 "in" 表示领域,如 "advances in polymer science"。

• A polymer of styrene is used here.
• Research in polymer technology is growing.
• It's a polymer with high strength.

语域说明

polymer 主要用于学术、科技和工业语境,如化学、材料科学或工程领域,日常对话中较少使用,除非讨论相关话题。

• In the lab, we analyze polymer samples.
• The polymer industry is expanding.
• This polymer is biodegradable.

基础例句

This plastic bag is made from a polymer called polyethylene.

这个塑料袋是由一种叫做聚乙烯的聚合物制成的。

I learned in school that rubber is a natural polymer.

我在学校学到橡胶是一种天然聚合物。

The toy is durable because it uses a strong polymer material.

这个玩具很耐用,因为它使用了坚固的聚合物材料。

We should recycle polymer products to reduce waste.

我们应该回收聚合物产品以减少浪费。

高级例句

The research focuses on developing biodegradable polymers for medical applications.

这项研究专注于开发用于医疗应用的可生物降解聚合物。

In polymer chemistry, the molecular weight distribution affects material properties.

在聚合物化学中,分子量分布会影响材料性能。

The company invested in advanced polymer processing technologies to improve efficiency.

该公司投资了先进的聚合物加工技术以提高效率。

Polymer nanocomposites show enhanced mechanical strength compared to traditional materials.

与传统材料相比,聚合物纳米复合材料显示出增强的机械强度。

高频搭配

verb

synthesize polymerform polymerdegrade polymermodify polymeranalyze polymer

adjective

synthetic polymernatural polymerbiodegradable polymerhigh-molecular-weight polymercross-linked polymer

noun

polymer chainpolymer matrixpolymer blendpolymer filmpolymer resin

adverb

highly polymerizedpartially degradedchemically modifiedthermally stable

preposition

polymer ofpolymer inpolymer withpolymer from

phrase

polymer sciencepolymer engineeringpolymer processingpolymer degradation

常见错误

❌ 错误:This is a polymer material that can be easily broken.
✓ 正确:This is a polymeric material that can be easily broken.

错误:polymer 是名词,直接修饰 material 不常见;正确:使用形容词 polymeric 修饰 material,更符合英语习惯,表示“聚合物的”。

❌ 错误:I study about polymer in university.
✓ 正确:I study polymers at university.

错误:about 多余,且 polymer 应为复数形式 polymers 表示泛指;正确:直接说 study polymers,用 at university 表示地点,更简洁自然。

近义词辨析

plastic

plastic 通常指具体的塑料制品或材料,是聚合物的一种常见应用;polymer 更学术,泛指所有聚合物物质,包括天然和合成的。

Plastic bottles are often made from polymers like PET. (塑料瓶通常由 PET 等聚合物制成。)

macromolecule

macromolecule 是更广泛的术语,指任何大分子,包括生物大分子如蛋白质;polymer 特指由重复单元组成的合成或天然大分子。

DNA is a macromolecule, but not typically called a polymer in everyday context. (DNA 是大分子,但在日常语境中不常被称为聚合物。)